Tasks/Image compression

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Image compression tools compared

Read the assessment, then compare prices, capabilities and constraints.

This topic covers 31 published image compression assessments: 26 support guest export without login or watermarks, 27 deliver watermark-free files, and 0 offer sourced commercial-use plans, with 11 verified for local browser processing. All scores are bound to fixed benchmark fixtures and dated native exports.

Quick scenarios:

31 published assessments

Plus 2 tested tools withheld from ranking due to free-tier paywalls (B1) or backend errors (B2) View blocked records ↓

Test scope & pricing dates

Pricing shows its own verification date and scope; tests retain their original dates. Vendor claims and test results are separate; paid specifications may be untested. About the scope →

Squoosh

squoosh.app · Image compression

97/100

Seven-aspect task score

Free, open-source, login-free and ad-free on-device processing suits privacy and fine control; results depend on the chosen codec and settings.

Tested export JPEG · Output attached

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (JPEG · Output attached) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 93.26% · Output size 278.8 KB

Detailed facts & historical record

Measured fixture results

File reduction: 93.26% · Output size: 278.8 KB

Fixture findings

Local processing reduced this fixture by about 93%; results depend on the codec and settings.

Original historical observation

Squoosh is the gold standard of honest online utilities: uploading 0 bytes to any server, its local WebAssembly engine compresses our 4.24 MB 2048×2048 anchor image down to 278.8 KB (-93.26%) in 0.85s while maintaining PSNR=37.13 dB and SSIM=0.9973 (02_workspace.png).

Suitable uses · historical assessment

Privacy-conscious users, developers, and designers who refuse to upload sensitive photos to cloud servers and want fine-grained codec control with real-time split-screen preview

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

JPEG · Output attached · No watermark in test

Detailed facts & historical record

Recorded export specifications: JPEG · Output attached · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (unlimited dimensions, local WebAssembly zero-watermark export)
Watermark observation: Watermark-free
Batch & API: Focused on single-image interactive codec tuning
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: Not verified

Evidence & scope →

Speed & reliability

About 0.85s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 0.85s · End-to-end reference: 0.85s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: 100% No Login Required (no account system, pure client-side browser utility)
Manual adjustment: Not verified
Interaction observations: Zero sign-up, zero popups, and zero ad trackers—opens directly into a millisecond-responsive split-screen comparison workspace.

Evidence & scope →

Background & reputation

Google Chrome Labs · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Google Chrome Labs
Recorded origin: Mountain View, California, USA
Domain history record: 2018–Present (maintained by Google Chrome DevRel)
Background & reputation assessment: Created and open-sourced by the Google Chrome Web DevRel team as the reference WebAssembly image codec playground.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: Not verified
Engineering & privacy assessment: CDP network capture confirms 100% client-side WebAssembly execution (MozJPEG / OxiPNG / WebP / AVIF) with 0 bytes uploaded to any remote server; works offline as a PWA.
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

Squoosh in-browser local image compressor; open-source free · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Squoosh Web (Open-source free)2026-10-21 ↗

Free

Free Completely free without login; local browser processing with no usage-count or file-size hard caps and full-resolution unwatermarked export.

1 plan / billing-period records, all listed; — means that period is not recorded.

The official page states that all work runs locally in the browser so images never leave the device; it is an Apache-2.0 open-source tool with no paid tiers or in-app purchases.

Cancellation, sources & verification record

Completely free open-source tool with no accounts or subscription charges.

Squoosh official page and open-source notice ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

Unlimited free forever with no daily count or file size caps

Original size, compressed size, and reduction percentage are displayed in real time on drop

Evaluation basis & full scores · Overall 96.6/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 99/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	35 / 35	100% open-source and free with zero paywalls, zero in-app purchases, zero resolution caps, and zero ads. Dragging in the 4.24 MB (2048×2048) anchor image immediately enables real-time split-slider comparison and one-click export (01_landing.png, 02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	30 / 30	Zero sign-up, zero popups, and zero ad trackers—opens directly into a millisecond-responsive split-screen comparison workspace.	Evidence A →
Background & reputation	19.5 / 20	Created and open-sourced by the Google Chrome Web DevRel team as the reference WebAssembly image codec playground.	Evidence A →
Engineering & privacy	14.5 / 15	CDP network capture confirms 100% client-side WebAssembly execution (MozJPEG / OxiPNG / WebP / AVIF) with 0 bytes uploaded to any remote server; works offline as a PWA.	Evidence A →

Capability · 95.6/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	61.6 / 65	Reduces file size by 93.26% (4,137.9 KB → 278.8 KB, 14.84× compression ratio) while preserving PSNR = 37.13 dB and SSIM = 0.9973, with full control over OxiPNG, MozJPEG, WebP, and AVIF encoders (61.6/65)	Evidence A →
Deliverable specifications	20 / 20	Preserves exact 2048×2048 dimensions (unless Resize is toggled by the user) with unrestricted local PNG/JPEG/WebP/AVIF download (20.0/20)	Evidence A →
Processing speed	14 / 15	100% local multi-threaded WebAssembly encoding with 0.0s network upload latency; re-encodes the 2048×2048 anchor in ~0.85s (14.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

JPEG-Optimizer

jpeg-optimizer.com · Image compression

95/100

Seven-aspect task score

Free login-free on-device processing supports target sizes, retaining full-size PNG with about 62% reduction in this run; display ads occupy the sidebar.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-19
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 61.76% · Output size 1582.4 KB

Detailed facts & historical record

Measured fixture results

File reduction: 61.76% · Output size: 1582.4 KB

Fixture findings

Local processing reduced this fixture by about 62%; other formats and images need separate tests.

Original historical observation

Despite its legacy 'JPEG-Optimizer' name, the tool fully supports client-side PNG, JPEG, and GIF compression. It shrinks our 4.14 MB anchor PNG by 61.76% to 1.55 MB locally in 1.4s with PSNR=39.35 dB and SSIM=0.9984 (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Privacy-conscious users who strictly prohibit cloud uploads and need fast 20-image batch PNG/JPEG compression in the browser

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (native resolution watermark-free PNG direct export)
Watermark observation: Watermark-free
Batch & API: Supports 20-image batch local compression and ZIP archive export; no external API
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 1.4s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 1.4s · End-to-end reference: 1.4s
Date & fixture: 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required (no account system on site)
Manual adjustment: Not verified
Interaction observations: One-click quality slider, target max KB, and dimension controls without login; exports directly via a browser blob: URL with only standard sidebar display ads.

Evidence & scope →

Background & reputation

JPEG-Optimizer (jpeg-optimizer.com) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: JPEG-Optimizer (jpeg-optimizer.com)
Recorded origin: Independent Web Utility
Domain history record: 2010–Present (16-year established domain)
Background & reputation assessment: Long-running web image optimization utility (jpeg-optimizer.com) operating since 2010, modernized with a pure client-side browser processing pipeline.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: Not verified
Engineering & privacy assessment: Explicitly promises and verified via network inspection: 'Privacy: Files are NEVER sent to the server, and all processing is handled via your own browser.' 100% client-side zero-upload execution.
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

JPEG-Optimizer in-browser bulk image compressor and resizer · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Completely Free Web2026-10-21 ↗

Free

Free Completely free without login; up to 20 images at once processed locally in the browser for JPEG/PNG/GIF.

1 plan / billing-period records, all listed; — means that period is not recorded.

The official page states "Completely Free. 20 images at once." and "Files are NEVER sent to the server, and all processing is handled via your own browser," supporting JPEG/PNG/GIF quality, max KB size, and max dimension settings.

Cancellation, sources & verification record

Completely free in-browser tool with no accounts or paid subscriptions.

JPEG-Optimizer official page and privacy notice ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

100% free with up to 20 images per batch and one-click ZIP download

Free batch quota and browser-local privacy guarantee are disclosed upfront above the fold

Evaluation basis & full scores · Overall 94.7/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 94/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	33.5 / 35	Clearly states 'Completely Free. 20 images at once.' on the landing page (01_landing.png) with zero paywalls, zero sign-up gates, and zero hidden limits; importing our 4.14 MB anchor PNG immediately generates a free local Download link and ZIP batch archive button (02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	27.5 / 30	One-click quality slider, target max KB, and dimension controls without login; exports directly via a browser blob: URL with only standard sidebar display ads.	Evidence A →
Background & reputation	18 / 20	Long-running web image optimization utility (jpeg-optimizer.com) operating since 2010, modernized with a pure client-side browser processing pipeline.	Evidence A →
Engineering & privacy	15 / 15	Explicitly promises and verified via network inspection: 'Privacy: Files are NEVER sent to the server, and all processing is handled via your own browser.' 100% client-side zero-upload execution.	Evidence A →

Capability · 95/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	61.2 / 65	Preserves native 2048×2048 PNG format at default 80% quality while shrinking 4,137.9 KB down to 1,582.4 KB (61.76% reduction, 2.61× ratio) with PSNR = 39.35 dB and SSIM = 0.9984 (61.2/65)	Evidence A →
Deliverable specifications	20 / 20	100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20)	Evidence A →
Processing speed	13.8 / 15	100% local browser computation (0s network upload), completing 4.14 MB PNG compression in ~1.4s (13.8/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

TinyPNG

tinypng.com · Image compression

93/100

Seven-aspect task score

Clear free allowances and login-free batch downloads balance PNG size and quality; the tested limits were 20 images at 5MB each, processed in the cloud.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 57.73% · Output size 1749 KB

Detailed facts & historical record

Measured fixture results

File reduction: 57.73% · Output size: 1749 KB

Fixture findings

Kept PNG format while reducing this fixture by about 58%; check free file-size and quantity limits.

Original historical observation

TinyPNG remains the gold standard for smart PNG quantization: without changing format or pixel dimensions (2048×2048), it cuts our 4.24 MB anchor PNG by 57.73% (1,749.0 KB) while achieving the highest fidelity in the category at PSNR=40.09 dB and SSIM=0.9987 (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Frontend developers, UI designers, and content editors who need to keep native PNG format (and alpha support) while cutting file weight by ~60% with virtually zero visual loss (PSNR > 40 dB)

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (native resolution preserved, watermark-free PNG)
Watermark observation: Watermark-free
Batch & API: Supports 20-file batch drag-and-drop, Photoshop plugin, and official Tinify REST API
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 6.3s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 4.2s · End-to-end reference: 6.3s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required for free tier
Manual adjustment: Not verified
Interaction observations: No forced sign-up modal, no countdown gates, and no watermark traps; clicking Download immediately exports the compressed PNG.

Evidence & scope →

Background & reputation

Tinify B.V. / Voormedia B.V. · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Tinify B.V. / Voormedia B.V.
Recorded origin: Amsterdam, Netherlands
Domain history record: 2012–Present (14-year PNG optimization benchmark)
Background & reputation assessment: Developed and operated by Voormedia B.V. in Amsterdam, Netherlands since 2012—the global benchmark for smart PNG quantization.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: HTTPS encrypted upload to api.tinify.com; temporary compressed files are automatically purged after a short window.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

TinyPNG online optimizer plans (Web Free / Web Pro / Web Ultra); USD · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Web Free2026-10-21 ↗

Free

Free Free without login; up to 20 images per session (max 5 MB each) for AVIF/WebP/PNG/JPEG compression and 3 format conversions per session.

Web Pro (Annual)2026-10-21 ↗

—

Annual price not verified

Annual Unlimited image compressions, up to 75 MB file size, folder upload, and ad-free; card displays USD 3.25/month equivalent ("Per month | Billed annually").

Pricing card displays only the USD 3.25/month equivalent ("Billed annually") without printing the annual invoice total on the public page.

Web Ultra (Annual)2026-10-21 ↗

—

Annual price not verified

Annual Unlimited compressions and format conversions, up to 150 MB file size, fastest speed, and ad-free; card displays USD 12.42/month equivalent ("Per month | Billed annually").

Pricing card displays only the USD 12.42/month equivalent ("Billed annually") without printing the annual invoice total on the public page.

3 plan / billing-period records, all listed; — means that period is not recorded.

The official /pricing/web page lists Web Free (USD 0, 20 images/session, max 5 MB/file, 3 format conversions/session), Web Pro (displayed as USD 3.25/month billed annually, unlimited compressions, max 75 MB/file), and Web Ultra (displayed as USD 12.42/month billed annually, unlimited compressions and conversions, max 150 MB/file). Because the Web Pro and Web Ultra cards display only rounded monthly equivalents ("Per month | Billed annually") without printing the annual invoice totals on the card, the annual totals are marked unverified.

Verification has gaps; unknown prices and quotas are not inferred.

Cancellation, sources & verification record

Credit card subscriptions auto-renew annually (with email reminders 1 month and 1 week prior) and can be disabled anytime in the account dashboard; upgrading from Web Pro to Web Ultra refunds remaining Web Pro months.

TinyPNG official website and Web subscription pricing page ↗ · 2026-10-21 Capture 1 ↗ · Capture 2 ↗

Allowance & disclosure on test date

Up to 20 images per day, max 5 MB per file on the free web tier

5 MB and 20-image limits are printed directly inside the upload dropzone before file selection

Evaluation basis & full scores · Overall 93.4/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 93/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	33 / 35	Clearly states free tier limits on the upload dropzone ('Up to 20 images, max 5 MB each'). Uploading the 4.24 MB (2048×2048) anchor PNG requires no login and immediately provides a free download button (01_landing.png, 02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	27.5 / 30	No forced sign-up modal, no countdown gates, and no watermark traps; clicking Download immediately exports the compressed PNG.	Evidence A →
Background & reputation	19.5 / 20	Developed and operated by Voormedia B.V. in Amsterdam, Netherlands since 2012—the global benchmark for smart PNG quantization.	Evidence A →
Engineering & privacy	13 / 15	HTTPS encrypted upload to api.tinify.com; temporary compressed files are automatically purged after a short window.	Evidence A →

Capability · 93.6/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	61.1 / 65	Preserves native PNG format and 2048×2048 dimensions while shrinking 4,137.9 KB to 1,749.0 KB (-57.73%, 2.37× ratio) with industry-leading PSNR = 40.09 dB and SSIM = 0.9987 (59.9/65)	Evidence A →
Deliverable specifications	20 / 20	Exports a watermark-free 2048×2048 PNG without login (capped at 5 MB per file and 20 files/day on the free tier) (19.0/20)	Evidence A →
Processing speed	12.5 / 15	Server-side smart quantization on api.tinify.com completes in ~4.2s (13.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

imageseoforai.com

imageseoforai.com · Image compression

93/100

Seven-aspect task score

Image SEO for AI excelled in the 2026-11-01 benchmark: fully guest-accessible and purely client-side via browser Canvas, reducing a 4.14 MB PNG by 54.7% to 1.87 MB with PSNR of 37.41 dB and SSIM of 0.9975, delivering full-resolution watermark-free PNG with zero server upload overhead.

Tested export 2048 × 2048 · PNG

Historical test · 2026-11-01
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

imageseoforai.com native output thumbnail

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 54.72% · Output size 1873.8 KB

Detailed facts & historical record

Measured fixture results

File reduction: 54.72% · Output size: 1873.8 KB

Fixture findings

Sample testing confirms: under default Balanced mode, it preserves 2048x2048 resolution and PNG format with smooth micro-edges, achieving 54.7% compression and a 91.2 overall benchmark rating.

Original historical observation

Image SEO for AI compresses images and strips metadata entirely inside browser Canvas; under default Balanced mode it reduces the 4.14 MB anchor by 54.7% to 1.87 MB with SSIM of 0.9975, maintaining great visual fidelity.

Suitable uses · historical assessment

E-commerce sellers and webmasters needing fast, free large-image compression preserving transparency and 2048px resolution

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (no-login full-resolution watermark-free direct PNG export)
Watermark observation: No watermark
Batch & API: Supports up to 100 images per batch, up to 40MB each
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 6.1s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 6.1s · End-to-end reference: 6.1s
Date & fixture: 2026-11-01 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: All features available directly without registration or login
Manual adjustment: Not verified
Interaction observations: Not verified

Evidence & scope →

Background & reputation

Image SEO for AI (Christophe / Maison Lune) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Image SEO for AI (Christophe / Maison Lune)
Recorded origin: Not verified
Domain history record: Not verified
Background & reputation assessment: Not verified
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: No third-party services listed in this record; this is not proof that none exist.
Engineering & privacy assessment: Not verified
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

Image SEO for AI 100% free client-side image compression and SEO optimization · 2026-11-01

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-11-01 ↗

Free

Free Completely free without registration, up to 100 images per batch (JPEG/PNG/WebP, up to 40 MB each)

Batch compression, C2PA/AI tag and GPS removal, SEO renaming, alt text, IPTC/XMP keyword and copyright embedding；Runs purely in client browser; very large batches may depend on local machine memory；Permanently free, no renewal；Perpetual access

1 plan / billing-period records, all listed; — means that period is not recorded.

All features are 100% free with no registration, no watermark, up to 100 images per batch (40MB each), running purely client-side.

Cancellation, sources & verification record

Cancellation and refund terms unverified

Image SEO for AI Official Homepage ↗ · 2026-11-01 Capture 1 ↗

Allowance & disclosure on test date

Completely free, 40MB per file, up to 100 images per batch

Interface transparently displays parameter settings and guidelines

Evaluation basis & full scores · Overall 93.2/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 96/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	35 / 35	Explanation unavailable	Evidence A →
Interaction restraint	30 / 30	Explanation unavailable	Evidence A →
Background & reputation	16 / 20	Explanation unavailable	Evidence A →
Engineering & privacy	15 / 15	Explanation unavailable	Evidence A →

Capability · 92/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	58 / 65	Size Reduction: -54.72% (4137.9 KB → 1873.8 KB, 2.21× ratio) · PSNR: 37.41 dB · SSIM: 0.9975	Evidence A →
Deliverable specifications	20 / 20	Clean unwatermarked export (8/8); Export spec: 2048×2048 (no-login full-resolution watermark-free direct PNG export)	Evidence A →
Processing speed	14 / 15	Network-observed server wait: 6.1s (API mode: client_side; network upload 0s / end-to-end 6.1s shown for reference only, never penalized)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

CloudConvert

cloudconvert.com · Image compression

93/100

Seven-aspect task score

Free login-free compression with zero ads retains full-size PNG at ~48% smaller size and offers one-click deletion; processing runs in the cloud without a manual quality slider.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-26
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 48.47% · Output size 2132.1 KB

Detailed facts & historical record

Measured fixture results

File reduction: 48.47% · Output size: 2132.1 KB

Fixture findings

pngquant 2.17 shrinks the 2048×2048 native PNG by 48.47% (4,137.9 KB to 2,132.1 KB) at 38.14 dB PSNR and 0.9979 SSIM in 2.47s server time.

Original historical observation

Powered by pngquant 2.17, CloudConvert compressed our 4,137.9 KB (2048×2048) anchor PNG to 2,132.1 KB (-48.47%) in 2.47s server time, achieving 38.14 dB PSNR and 0.9979 SSIM with zero ads (03_download.png).

Suitable uses · historical assessment

Users seeking ad-free, login-free, high-fidelity (38.14 dB PSNR) PNG compression (~48% size reduction) backed by GDPR/ISO 27001 privacy

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (Full-resolution watermark-free PNG export without login)
Watermark observation: Watermark-free
Batch & API: Supports multi-file batch queues, REST API v2, and Webhook integration
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 9.51s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 2.47s · End-to-end reference: 9.51s
Date & fixture: 2026-10-26 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required; supports Email / Google / GitHub login
Manual adjustment: Not verified
Interaction observations: Completely free of third-party ads, promotional popups, or deceptive download buttons.

Evidence & scope →

Background & reputation

Lunaweb GmbH (CloudConvert) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Lunaweb GmbH (CloudConvert)
Recorded origin: Munich, Germany (est. 2012)
Domain history record: 2012–Present (14-year cloud conversion benchmark)
Background & reputation assessment: Independently operated by Lunaweb GmbH (Munich, Germany) since 2012 with ISO/IEC 27001 certification.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: No third-party services listed in this record; this is not proof that none exist.
Engineering & privacy assessment: Strictly follows EU GDPR rules, never uses user images for AI model training, and provides 1-click (`×`) immediate cloud deletion after completion.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

CloudConvert USD shared web/API credits; all 75 slider capacities · 2026-10-20

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-10-20 ↗

Free

Free 10 conversion credits/day; 1 GB, 5 minutes/task, 5 concurrent; PDF-to-Office has a base cost of at least 4 credits.

Package · 500 credits2026-10-20 ↗

USD 9 · one-time payment

Usage / one-time

Usage / one-time 500 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 500 files. Rules [1]

Package · 750 credits2026-10-20 ↗

USD 13 · one-time payment

Usage / one-time

Usage / one-time 750 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 750 files. Rules [1]

Package · 1,000 credits2026-10-20 ↗

USD 17 · one-time payment

Usage / one-time

Usage / one-time 1000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 1000 files. Rules [1]

Subscription · 1,000 credits2026-10-20 ↗

USD 9/month

—

Monthly 1000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 1,250 credits2026-10-20 ↗

USD 21 · one-time payment

Usage / one-time

Usage / one-time 1250 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 1250 files. Rules [1]

Subscription · 1,250 credits2026-10-20 ↗

USD 11/month

—

Monthly 1250 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 1,500 credits2026-10-20 ↗

USD 25 · one-time payment

Usage / one-time

Usage / one-time 1500 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 1500 files. Rules [1]

Subscription · 1,500 credits2026-10-20 ↗

USD 13/month

—

Monthly 1500 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 1,750 credits2026-10-20 ↗

USD 28 · one-time payment

Usage / one-time

Usage / one-time 1750 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 1750 files. Rules [1]

Subscription · 1,750 credits2026-10-20 ↗

USD 15/month

—

Monthly 1750 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 2,000 credits2026-10-20 ↗

USD 32 · one-time payment

Usage / one-time

Usage / one-time 2000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 2000 files. Rules [1]

Subscription · 2,000 credits2026-10-20 ↗

USD 17/month

—

Monthly 2000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 2,500 credits2026-10-20 ↗

USD 39 · one-time payment

Usage / one-time

Usage / one-time 2500 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 2500 files. Rules [1]

Subscription · 2,500 credits2026-10-20 ↗

USD 21/month

—

Monthly 2500 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 3,000 credits2026-10-20 ↗

USD 46 · one-time payment

Usage / one-time

Usage / one-time 3000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 3000 files. Rules [1]

Subscription · 3,000 credits2026-10-20 ↗

USD 25/month

—

Monthly 3000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 3,500 credits2026-10-20 ↗

USD 52 · one-time payment

Usage / one-time

Usage / one-time 3500 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 3500 files. Rules [1]

Subscription · 3,500 credits2026-10-20 ↗

USD 28/month

—

Monthly 3500 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 4,000 credits2026-10-20 ↗

USD 59 · one-time payment

Usage / one-time

Usage / one-time 4000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 4000 files. Rules [1]

Subscription · 4,000 credits2026-10-20 ↗

USD 32/month

—

Monthly 4000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 4,500 credits2026-10-20 ↗

USD 65 · one-time payment

Usage / one-time

Usage / one-time 4500 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 4500 files. Rules [1]

Subscription · 4,500 credits2026-10-20 ↗

USD 36/month

—

Monthly 4500 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 5,000 credits2026-10-20 ↗

USD 72 · one-time payment

Usage / one-time

Usage / one-time 5000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 5000 files. Rules [1]

Subscription · 5,000 credits2026-10-20 ↗

USD 39/month

—

Monthly 5000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 6,000 credits2026-10-20 ↗

USD 84 · one-time payment

Usage / one-time

Usage / one-time 6000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 6000 files. Rules [1]

Subscription · 6,000 credits2026-10-20 ↗

USD 46/month

—

Monthly 6000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 7,000 credits2026-10-20 ↗

USD 96 · one-time payment

Usage / one-time

Usage / one-time 7000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 7000 files. Rules [1]

Subscription · 7,000 credits2026-10-20 ↗

USD 53/month

—

Monthly 7000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 8,000 credits2026-10-20 ↗

USD 108 · one-time payment

Usage / one-time

Usage / one-time 8000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 8000 files. Rules [1]

Subscription · 8,000 credits2026-10-20 ↗

USD 60/month

—

Monthly 8000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 9,000 credits2026-10-20 ↗

USD 120 · one-time payment

Usage / one-time

Usage / one-time 9000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 9000 files. Rules [1]

Subscription · 9,000 credits2026-10-20 ↗

USD 66/month

—

Monthly 9000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 10,000 credits2026-10-20 ↗

USD 132 · one-time payment

Usage / one-time

Usage / one-time 10000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 10000 files. Rules [1]

Subscription · 10,000 credits2026-10-20 ↗

USD 73/month

—

Monthly 10000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 11,000 credits2026-10-20 ↗

USD 143 · one-time payment

Usage / one-time

Usage / one-time 11000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 11000 files. Rules [1]

Subscription · 11,000 credits2026-10-20 ↗

USD 79/month

—

Monthly 11000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 12,000 credits2026-10-20 ↗

USD 154 · one-time payment

Usage / one-time

Usage / one-time 12000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 12000 files. Rules [1]

Subscription · 12,000 credits2026-10-20 ↗

USD 86/month

—

Monthly 12000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 13,000 credits2026-10-20 ↗

USD 165 · one-time payment

Usage / one-time

Usage / one-time 13000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 13000 files. Rules [1]

Subscription · 13,000 credits2026-10-20 ↗

USD 92/month

—

Monthly 13000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 14,000 credits2026-10-20 ↗

USD 177 · one-time payment

Usage / one-time

Usage / one-time 14000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 14000 files. Rules [1]

Subscription · 14,000 credits2026-10-20 ↗

USD 98/month

—

Monthly 14000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 15,000 credits2026-10-20 ↗

USD 187 · one-time payment

Usage / one-time

Usage / one-time 15000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 15000 files. Rules [1]

Subscription · 15,000 credits2026-10-20 ↗

USD 104/month

—

Monthly 15000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 16,000 credits2026-10-20 ↗

USD 198 · one-time payment

Usage / one-time

Usage / one-time 16000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 16000 files. Rules [1]

Subscription · 16,000 credits2026-10-20 ↗

USD 111/month

—

Monthly 16000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 17,000 credits2026-10-20 ↗

USD 209 · one-time payment

Usage / one-time

Usage / one-time 17000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 17000 files. Rules [1]

Subscription · 17,000 credits2026-10-20 ↗

USD 117/month

—

Monthly 17000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 18,000 credits2026-10-20 ↗

USD 219 · one-time payment

Usage / one-time

Usage / one-time 18000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 18000 files. Rules [1]

Subscription · 18,000 credits2026-10-20 ↗

USD 123/month

—

Monthly 18000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 19,000 credits2026-10-20 ↗

USD 230 · one-time payment

Usage / one-time

Usage / one-time 19000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 19000 files. Rules [1]

Subscription · 19,000 credits2026-10-20 ↗

USD 129/month

—

Monthly 19000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 20,000 credits2026-10-20 ↗

USD 240 · one-time payment

Usage / one-time

Usage / one-time 20000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 20000 files. Rules [1]

Subscription · 20,000 credits2026-10-20 ↗

USD 135/month

—

Monthly 20000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 21,000 credits2026-10-20 ↗

USD 251 · one-time payment

Usage / one-time

Usage / one-time 21000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 21000 files. Rules [1]

Subscription · 21,000 credits2026-10-20 ↗

USD 141/month

—

Monthly 21000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 22,000 credits2026-10-20 ↗

USD 261 · one-time payment

Usage / one-time

Usage / one-time 22000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 22000 files. Rules [1]

Subscription · 22,000 credits2026-10-20 ↗

USD 147/month

—

Monthly 22000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 23,000 credits2026-10-20 ↗

USD 271 · one-time payment

Usage / one-time

Usage / one-time 23000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 23000 files. Rules [1]

Subscription · 23,000 credits2026-10-20 ↗

USD 153/month

—

Monthly 23000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 24,000 credits2026-10-20 ↗

USD 281 · one-time payment

Usage / one-time

Usage / one-time 24000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 24000 files. Rules [1]

Subscription · 24,000 credits2026-10-20 ↗

USD 159/month

—

Monthly 24000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 25,000 credits2026-10-20 ↗

USD 291 · one-time payment

Usage / one-time

Usage / one-time 25000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 25000 files. Rules [1]

Subscription · 25,000 credits2026-10-20 ↗

USD 164/month

—

Monthly 25000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 30,000 credits2026-10-20 ↗

USD 341 · one-time payment

Usage / one-time

Usage / one-time 30000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 30000 files. Rules [1]

Subscription · 30,000 credits2026-10-20 ↗

USD 193/month

—

Monthly 30000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 35,000 credits2026-10-20 ↗

USD 389 · one-time payment

Usage / one-time

Usage / one-time 35000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 35000 files. Rules [1]

Subscription · 35,000 credits2026-10-20 ↗

USD 222/month

—

Monthly 35000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 40,000 credits2026-10-20 ↗

USD 435 · one-time payment

Usage / one-time

Usage / one-time 40000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 40000 files. Rules [1]

Subscription · 40,000 credits2026-10-20 ↗

USD 249/month

—

Monthly 40000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 45,000 credits2026-10-20 ↗

USD 481 · one-time payment

Usage / one-time

Usage / one-time 45000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 45000 files. Rules [1]

Subscription · 45,000 credits2026-10-20 ↗

USD 276/month

—

Monthly 45000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 50,000 credits2026-10-20 ↗

USD 526 · one-time payment

Usage / one-time

Usage / one-time 50000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 50000 files. Rules [1]

Subscription · 50,000 credits2026-10-20 ↗

USD 303/month

—

Monthly 50000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 55,000 credits2026-10-20 ↗

USD 570 · one-time payment

Usage / one-time

Usage / one-time 55000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 55000 files. Rules [1]

Subscription · 55,000 credits2026-10-20 ↗

USD 330/month

—

Monthly 55000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 60,000 credits2026-10-20 ↗

USD 613 · one-time payment

Usage / one-time

Usage / one-time 60000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 60000 files. Rules [1]

Subscription · 60,000 credits2026-10-20 ↗

USD 356/month

—

Monthly 60000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 65,000 credits2026-10-20 ↗

USD 656 · one-time payment

Usage / one-time

Usage / one-time 65000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 65000 files. Rules [1]

Subscription · 65,000 credits2026-10-20 ↗

USD 382/month

—

Monthly 65000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 70,000 credits2026-10-20 ↗

USD 698 · one-time payment

Usage / one-time

Usage / one-time 70000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 70000 files. Rules [1]

Subscription · 70,000 credits2026-10-20 ↗

USD 407/month

—

Monthly 70000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 75,000 credits2026-10-20 ↗

USD 739 · one-time payment

Usage / one-time

Usage / one-time 75000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 75000 files. Rules [1]

Subscription · 75,000 credits2026-10-20 ↗

USD 432/month

—

Monthly 75000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 80,000 credits2026-10-20 ↗

USD 780 · one-time payment

Usage / one-time

Usage / one-time 80000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 80000 files. Rules [1]

Subscription · 80,000 credits2026-10-20 ↗

USD 457/month

—

Monthly 80000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 85,000 credits2026-10-20 ↗

USD 821 · one-time payment

Usage / one-time

Usage / one-time 85000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 85000 files. Rules [1]

Subscription · 85,000 credits2026-10-20 ↗

USD 482/month

—

Monthly 85000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 90,000 credits2026-10-20 ↗

USD 861 · one-time payment

Usage / one-time

Usage / one-time 90000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 90000 files. Rules [1]

Subscription · 90,000 credits2026-10-20 ↗

USD 507/month

—

Monthly 90000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 95,000 credits2026-10-20 ↗

USD 900 · one-time payment

Usage / one-time

Usage / one-time 95000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 95000 files. Rules [1]

Subscription · 95,000 credits2026-10-20 ↗

USD 531/month

—

Monthly 95000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 100,000 credits2026-10-20 ↗

USD 939 · one-time payment

Usage / one-time

Usage / one-time 100000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 100000 files. Rules [1]

Subscription · 100,000 credits2026-10-20 ↗

USD 555/month

—

Monthly 100000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 110,000 credits2026-10-20 ↗

USD 1,016 · one-time payment

Usage / one-time

Usage / one-time 110000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 110000 files. Rules [1]

Subscription · 110,000 credits2026-10-20 ↗

USD 603/month

—

Monthly 110000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 120,000 credits2026-10-20 ↗

USD 1,091 · one-time payment

Usage / one-time

Usage / one-time 120000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 120000 files. Rules [1]

Subscription · 120,000 credits2026-10-20 ↗

USD 650/month

—

Monthly 120000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 130,000 credits2026-10-20 ↗

USD 1,165 · one-time payment

Usage / one-time

Usage / one-time 130000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 130000 files. Rules [1]

Subscription · 130,000 credits2026-10-20 ↗

USD 697/month

—

Monthly 130000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 140,000 credits2026-10-20 ↗

USD 1,238 · one-time payment

Usage / one-time

Usage / one-time 140000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 140000 files. Rules [1]

Subscription · 140,000 credits2026-10-20 ↗

USD 743/month

—

Monthly 140000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 150,000 credits2026-10-20 ↗

USD 1,310 · one-time payment

Usage / one-time

Usage / one-time 150000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 150000 files. Rules [1]

Subscription · 150,000 credits2026-10-20 ↗

USD 789/month

—

Monthly 150000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 160,000 credits2026-10-20 ↗

USD 1,380 · one-time payment

Usage / one-time

Usage / one-time 160000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 160000 files. Rules [1]

Subscription · 160,000 credits2026-10-20 ↗

USD 834/month

—

Monthly 160000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 170,000 credits2026-10-20 ↗

USD 1,450 · one-time payment

Usage / one-time

Usage / one-time 170000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 170000 files. Rules [1]

Subscription · 170,000 credits2026-10-20 ↗

USD 878/month

—

Monthly 170000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 180,000 credits2026-10-20 ↗

USD 1,519 · one-time payment

Usage / one-time

Usage / one-time 180000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 180000 files. Rules [1]

Subscription · 180,000 credits2026-10-20 ↗

USD 922/month

—

Monthly 180000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 190,000 credits2026-10-20 ↗

USD 1,586 · one-time payment

Usage / one-time

Usage / one-time 190000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 190000 files. Rules [1]

Subscription · 190,000 credits2026-10-20 ↗

USD 966/month

—

Monthly 190000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 200,000 credits2026-10-20 ↗

USD 1,653 · one-time payment

Usage / one-time

Usage / one-time 200000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 200000 files. Rules [1]

Subscription · 200,000 credits2026-10-20 ↗

USD 1,009/month

—

Monthly 200000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 210,000 credits2026-10-20 ↗

USD 1,719 · one-time payment

Usage / one-time

Usage / one-time 210000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 210000 files. Rules [1]

Subscription · 210,000 credits2026-10-20 ↗

USD 1,052/month

—

Monthly 210000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 220,000 credits2026-10-20 ↗

USD 1,784 · one-time payment

Usage / one-time

Usage / one-time 220000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 220000 files. Rules [1]

Subscription · 220,000 credits2026-10-20 ↗

USD 1,095/month

—

Monthly 220000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 230,000 credits2026-10-20 ↗

USD 1,849 · one-time payment

Usage / one-time

Usage / one-time 230000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 230000 files. Rules [1]

Subscription · 230,000 credits2026-10-20 ↗

USD 1,137/month

—

Monthly 230000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 240,000 credits2026-10-20 ↗

USD 1,913 · one-time payment

Usage / one-time

Usage / one-time 240000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 240000 files. Rules [1]

Subscription · 240,000 credits2026-10-20 ↗

USD 1,179/month

—

Monthly 240000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 250,000 credits2026-10-20 ↗

USD 1,976 · one-time payment

Usage / one-time

Usage / one-time 250000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 250000 files. Rules [1]

Subscription · 250,000 credits2026-10-20 ↗

USD 1,221/month

—

Monthly 250000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 260,000 credits2026-10-20 ↗

USD 2,038 · one-time payment

Usage / one-time

Usage / one-time 260000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 260000 files. Rules [1]

Subscription · 260,000 credits2026-10-20 ↗

USD 1,262/month

—

Monthly 260000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 270,000 credits2026-10-20 ↗

USD 2,100 · one-time payment

Usage / one-time

Usage / one-time 270000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 270000 files. Rules [1]

Subscription · 270,000 credits2026-10-20 ↗

USD 1,303/month

—

Monthly 270000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 280,000 credits2026-10-20 ↗

USD 2,161 · one-time payment

Usage / one-time

Usage / one-time 280000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 280000 files. Rules [1]

Subscription · 280,000 credits2026-10-20 ↗

USD 1,344/month

—

Monthly 280000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 290,000 credits2026-10-20 ↗

USD 2,222 · one-time payment

Usage / one-time

Usage / one-time 290000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 290000 files. Rules [1]

Subscription · 290,000 credits2026-10-20 ↗

USD 1,385/month

—

Monthly 290000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 300,000 credits2026-10-20 ↗

USD 2,282 · one-time payment

Usage / one-time

Usage / one-time 300000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 300000 files. Rules [1]

Subscription · 300,000 credits2026-10-20 ↗

USD 1,425/month

—

Monthly 300000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 400,000 credits2026-10-20 ↗

USD 2,856 · one-time payment

Usage / one-time

Usage / one-time 400000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 400000 files. Rules [1]

Subscription · 400,000 credits2026-10-20 ↗

USD 1,816/month

—

Monthly 400000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 500,000 credits2026-10-20 ↗

USD 3,389 · one-time payment

Usage / one-time

Usage / one-time 500000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 500000 files. Rules [1]

Subscription · 500,000 credits2026-10-20 ↗

USD 2,188/month

—

Monthly 500000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 600,000 credits2026-10-20 ↗

USD 3,890 · one-time payment

Usage / one-time

Usage / one-time 600000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 600000 files. Rules [1]

Subscription · 600,000 credits2026-10-20 ↗

USD 2,546/month

—

Monthly 600000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 700,000 credits2026-10-20 ↗

USD 4,363 · one-time payment

Usage / one-time

Usage / one-time 700000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 700000 files. Rules [1]

Subscription · 700,000 credits2026-10-20 ↗

USD 2,892/month

—

Monthly 700000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 800,000 credits2026-10-20 ↗

USD 4,813 · one-time payment

Usage / one-time

Usage / one-time 800000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 800000 files. Rules [1]

Subscription · 800,000 credits2026-10-20 ↗

USD 3,227/month

—

Monthly 800000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 900,000 credits2026-10-20 ↗

USD 5,243 · one-time payment

Usage / one-time

Usage / one-time 900000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 900000 files. Rules [1]

Subscription · 900,000 credits2026-10-20 ↗

USD 3,553/month

—

Monthly 900000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Package · 1,000,000 credits2026-10-20 ↗

USD 5,655 · one-time payment

Usage / one-time

Usage / one-time 1000000 conversion credits, never expire; PDF-to-Office base cost 4 credits with extra processing time charged separately; not 1000000 files. Rules [1]

Subscription · 1,000,000 credits2026-10-20 ↗

USD 3,870/month

—

Monthly 1000000 conversion credits/month; reset monthly without rollover; PDF-to-Office base cost 4 credits plus processing-time charges. Rules [2]

Enterprise2026-10-20 ↗

Contact sales

Quoted

Quoted Large workloads, contracts and dedicated capacity quoted.

150 plan / billing-period records, all listed; — means that period is not recorded.

[1] Never expires

[2] Monthly reset, no rollover

Confirmed 75 package and 73 monthly subscription capacities; subscriptions start at 1,000 credits. The table says 10 free credits/day while the footer says 10 conversions/day; this conflict does not establish 10 PDFs. PDF-to-Office has a 4-credit base and longer processing incurs more, replacing the historical mixed minutes/count description.

Cancellation, sources & verification record

Monthly subscriptions can be cancelled anytime without a minimum term; remaining credits expire when changing subscriptions. Optional package auto-refill must be enabled separately.

Official feature and pricing page ↗ · 2026-10-20 Capture 1 ↗

Allowance & disclosure on test date

Free tier includes ~10–25 daily tasks without login, exporting watermark-free full-resolution PNGs

Completely upfront on workspace and pricing pages with zero post-processing traps

Evaluation basis & full scores · Overall 92.9/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 95/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	33 / 35	Transparent pricing and quota rules (free tier includes ~10–25 daily tasks at 1 credit per PNG optimization); in our no-login test with the 4,137.9 KB (2048×2048) anchor PNG, clicking Compress completed server processing in 2.47s and displayed "FINISHED · File size reduced by 48%" with a direct Download button and zero paywalls (01_landing.png, 02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	28 / 30	Completely free of third-party ads, promotional popups, or deceptive download buttons.	Evidence A →
Background & reputation	19.5 / 20	Independently operated by Lunaweb GmbH (Munich, Germany) since 2012 with ISO/IEC 27001 certification.	Evidence A →
Engineering & privacy	14.5 / 15	Strictly follows EU GDPR rules, never uses user images for AI model training, and provides 1-click (`×`) immediate cloud deletion after completion.	Evidence A →

Capability · 92/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	58 / 65	Uses pngquant 2.17 to shrink the 4,137.9 KB (2048×2048) PNG down to 2,132.1 KB (-48.47%, 1.94× ratio) while preserving native PNG format, achieving PSNR = 38.14 dB and SSIM = 0.9979 (58.0/65)	Evidence A →
Deliverable specifications	20 / 20	Preserves 100% of the 2048×2048 resolution and native PNG container without login or watermarks, supporting multi-file batch queues (20.0/20)	Evidence A →
Processing speed	14 / 15	After object storage upload completes (10:06:59.033Z), the CloudConvert worker (pngquant 2.17) finishes optimization in 2.47s (10:07:01.506Z), with 5.95s upload time (14.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

quickimagekit.com

quickimagekit.com · Image compression

92/100

Seven-aspect task score

100% free and local in-browser compression with zero cloud upload, shrinking our 4.14 MB anchor by 93.33% to 276 KB (37.75 dB PSNR) in 0.54s, though PNG inputs are converted to WebP as disclosed.

Tested export WEBP · Output attached

Historical test · 2026-10-26
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

quickimagekit.com native output thumbnail

Inspect native image (WEBP · Output attached) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 93.33% · Output size 276 KB

Detailed facts & historical record

Measured fixture results

File reduction: 93.33% · Output size: 276 KB

Fixture findings

Default Balanced mode converts the 4,137.9 KB anchor to a 276.0 KB WebP (-93.33%) with 37.75 dB PSNR and 0.9977 SSIM, keeping text and edges crisp.

Original historical observation

Running 100% locally in the browser (0.0s upload, 0.54s end-to-end), QuickImageKit compressed our 4,137.9 KB (2048×2048) anchor PNG into a 276.0 KB WebP (-93.33%) at 37.75 dB PSNR and 0.9977 SSIM with sharp text and edges (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Privacy-conscious web developers and creators who want zero cloud upload and >90% size reduction into modern WebP format

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

WEBP · Output attached · No watermark in test

Detailed facts & historical record

Recorded export specifications: WEBP · Output attached · No watermark in test
Historical specification note · not an official maximum: 2048 × 2048 (Full-size watermark-free WebP)
Watermark observation: Watermark-free
Batch & API: Supports multi-image drag-and-drop and batch ZIP download; no external REST API
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: Not verified

Evidence & scope →

Speed & reliability

About 0.54s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 0s · End-to-end reference: 0.54s
Date & fixture: 2026-10-26 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: 100% login-free (no account system; pure local browser utility)
Manual adjustment: Not verified
Interaction observations: Zero registration prompts, ad overlays, or deceptive redirects; dropping an image immediately displays original size, compressed size, reduction percentage, and a direct download button.

Evidence & scope →

Background & reputation

QuickImageKit (Independent Client-Side Toolkit) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: QuickImageKit (Independent Client-Side Toolkit)
Recorded origin: Undisclosed jurisdiction (Cloudflare global edge)
Domain history record: 2026–Present
Background & reputation assessment: Independent client-side browser image toolkit launched in 2026 with clear privacy documentation and contact channels, though without a disclosed corporate entity name.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: Vercel Web Analytics (_vercel/insights)
Engineering & privacy assessment: Verified via browser network monitoring: image compression runs 100% locally via Canvas / WebP encoding with zero bytes uploaded to any remote server (upload_s_net = 0s).
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

Quick Image Kit in-browser local image utilities; completely free · 2026-10-26

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free local web tool2026-10-26 ↗

Free

Free Completely free without login; 100% local in-browser processing with quality slider and 50KB/100KB/200KB/500KB target-size presets, watermark-free export.

PNG inputs are converted to WebP upon export (disclosed upfront as Format: PNG → WebP)

1 plan / billing-period records, all listed; — means that period is not recorded.

The official page states that images are decoded and rendered locally in the browser without server uploads, with no paid subscriptions or credit packs; PNG inputs are exported as WebP.

Cancellation, sources & verification record

Completely free local utility with no accounts or paid subscriptions.

Quick Image Kit official image compressor and privacy notice page ↗ · 2026-10-26 Capture 1 ↗ · Capture 2 ↗

Allowance & disclosure on test date

Unlimited free usage with multi-image drag-and-drop and ZIP batch download

Upfront disclosure on both landing page and workspace that PNG inputs convert to WebP

Evaluation basis & full scores · Overall 92/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 93/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	35 / 35	100% free with no account registration, paywalls, or file-count caps; the landing page and workspace clearly disclose upfront that PNG inputs are converted to WebP for maximum compression (Format: PNG → WebP). Dropping our 4,137.9 KB (2048×2048) anchor PNG immediately enabled a free 276.0 KB download (01_landing.png, 02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	29 / 30	Zero registration prompts, ad overlays, or deceptive redirects; dropping an image immediately displays original size, compressed size, reduction percentage, and a direct download button.	Evidence A →
Background & reputation	14.5 / 20	Independent client-side browser image toolkit launched in 2026 with clear privacy documentation and contact channels, though without a disclosed corporate entity name.	Evidence B →
Engineering & privacy	14.5 / 15	Verified via browser network monitoring: image compression runs 100% locally via Canvas / WebP encoding with zero bytes uploaded to any remote server (upload_s_net = 0s).	Evidence A →

Capability · 91.5/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	59.5 / 65	In default Balanced mode, compresses the 4,137.9 KB (2048×2048) PNG anchor to a 276.0 KB WebP (-93.33%, 14.99× ratio) while achieving PSNR = 37.75 dB and SSIM = 0.9977 (59.5/65)	Evidence A →
Deliverable specifications	17 / 20	Preserves 100% of the 2048×2048 pixel resolution with zero watermarks or login walls and supports multi-file ZIP export; 3 points deducted because PNG inputs are converted to WebP (explicitly disclosed as Format: PNG → WebP) rather than preserving a native PNG container (17.0/20)	Evidence A →
Processing speed	15 / 15	100% client-side local browser encoding with 0.0s network upload or server wait, completing the 2048×2048 anchor in ~0.54s end-to-end (15.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

WeCompress

wecompress.com · Image compression

92/100

Seven-aspect task score

Login-free access discloses free size limits, roughly halves this PNG and offers deletion; cloud processing comes with ads and desktop promotions.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-19
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 50.8% · Output size 2035.9 KB

Detailed facts & historical record

Measured fixture results

File reduction: 50.8% · Output size: 2035.9 KB

Fixture findings

Reduced this fixture by about 51% without manual settings; findings cover this image test only.

Original historical observation

Powered by Neuxpower's mature NXPowerLite engine, WeCompress requires zero manual tuning to cut our 4.14 MB anchor PNG by 50.80% to 2.04 MB while maintaining PSNR=39.65 dB and SSIM=0.9985 (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Office users who prefer a zero-configuration workflow for compressing large images (≤50 MB) alongside PDF, PowerPoint, Word, and Excel files

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (native resolution watermark-free PNG direct export)
Watermark observation: Watermark-free
Batch & API: Single-file sequential processing on web; desktop app available for bulk offline processing
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 6.8s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 4.8s · End-to-end reference: 6.8s
Date & fixture: 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required
Manual adjustment: Not verified
Interaction observations: Zero-config single-click upload and download; gently recommends NXPowerLite Desktop after download alongside a right-rail Google AdSense banner.

Evidence & scope →

Background & reputation

Neuxpower Solutions Ltd. · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Neuxpower Solutions Ltd.
Recorded origin: London, United Kingdom
Domain history record: Vendor founded in 1997; wecompress.com operating for 10+ years
Background & reputation assessment: Operated by Neuxpower Solutions Ltd. (London, UK, founded 1997), creators of the enterprise NXPowerLite compression suite.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: ISO/IEC 27001 certified infrastructure with one-click manual cloud deletion and automatic short-term file purging.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

WeCompress online file and image compressor web tool (excludes separately sold NXPowerLite Desktop software) · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

WeCompress Online Free2026-10-21 ↗

Free

Free Free without login; max 50 MB per file (supports JPEG/PNG/TIFF and PDF/Office documents) with ad-free, unwatermarked export.

1 plan / billing-period records, all listed; — means that period is not recorded.

The WeCompress web tool explicitly states it is free, ad-free, and requires no registration for files up to 50 MB (supporting JPEG, PNG, TIFF, PDF, PowerPoint, Word, and Excel), with automatic deletion after processing. Users needing larger file limits or offline batch compression are directed to the separate NXPowerLite Desktop software.

Cancellation, sources & verification record

WeCompress web is completely free with no subscription charges; NXPowerLite Desktop is sold separately by Neuxpower.

WeCompress official online file compressor page ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

Free single-file compression up to 50 MB for PNG, JPEG, TIFF, PDF, PPT, Word, and Excel; bulk offline batching requires NXPowerLite Desktop

50 MB file size limit and desktop vs web differences are transparently stated upfront

Evaluation basis & full scores · Overall 91.9/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 91.5/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	32.5 / 35	Clearly states free no-login compression for files up to 50 MB on the landing page (01_landing.png); uploading our 4.14 MB anchor PNG immediately displays '4.04 MB ➔ 1.99 MB (51%)' and a free download button with zero paywalls (02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	26.5 / 30	Zero-config single-click upload and download; gently recommends NXPowerLite Desktop after download alongside a right-rail Google AdSense banner.	Evidence A →
Background & reputation	19 / 20	Operated by Neuxpower Solutions Ltd. (London, UK, founded 1997), creators of the enterprise NXPowerLite compression suite.	Evidence A →
Engineering & privacy	13.5 / 15	ISO/IEC 27001 certified infrastructure with one-click manual cloud deletion and automatic short-term file purging.	Evidence A →

Capability · 92/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	59.8 / 65	Preserves native 2048×2048 PNG format while reducing 4,137.9 KB to 2,035.9 KB (50.80% reduction, 2.03× ratio) with high PSNR = 39.65 dB and SSIM = 0.9985 (59.8/65)	Evidence A →
Deliverable specifications	20 / 20	100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20)	Evidence A →
Processing speed	12.2 / 15	Cloud NXPowerLite engine completes upload and compression in ~6.8s (~4.8s server processing) (12.2/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

RedKetchup

redketchup.io · Image compression

92/100

Seven-aspect task score

On-device processing retains full size for free with detailed controls; ad blocking adds a 20-second export wait, avoidable by allowing ads or paying.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-19
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 56.31% · Output size 1807.8 KB

Detailed facts & historical record

Measured fixture results

File reduction: 56.31% · Output size: 1807.8 KB

Fixture findings

Local processing reduced this fixture by about 56% with adjustable quantisation; useful if you want parameter control.

Original historical observation

RedKetchup is one of the few tools that lets users manually pick 8-bit quantization dithering algorithms (Atkinson) and inspect pixels side-by-side in a full-screen viewer: it shrinks our 4.14 MB anchor PNG by 56.31% to 1.77 MB locally at PSNR=39.35 dB and SSIM=0.9984 (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Developers and UI designers who want fine-grained control over PNG color depth (8/24/32-bit) and dithering algorithms with 100% local browser privacy

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (native resolution watermark-free PNG direct export)
Watermark observation: Watermark-free
Batch & API: Offers a dedicated Bulk Image Resizer page; no external cloud API
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 2.2s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 2.2s · End-to-end reference: 2.2s
Date & fixture: 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required; optional $5 ad-free account login
Manual adjustment: Not verified
Interaction observations: Offers industry-leading granular controls for PNG bit depth (8-bit / 24-bit / 32-bit) and dithering algorithms (Atkinson / Floyd-Steinberg / Sierra) plus a split-screen inspector; the only friction is the 20s timer when ads are blocked.

Evidence & scope →

Background & reputation

RedKetchup (redketchup.io) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: RedKetchup (redketchup.io)
Recorded origin: Independent Developer Toolkit
Domain history record: 2021–Present
Background & reputation assessment: Well-regarded independent frontend image processing toolkit (Image Resizer, Compressor, Icon Editor) actively maintained since 2021.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: Not verified
Engineering & privacy assessment: 100% client-side browser Web Worker and HTML5 Canvas execution—all PNG palette quantization and Atkinson dithering happen locally in browser memory (Blob URL) with zero server uploads.
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

RedKetchup web tools and ad-free Premium account (Free / $5 One-Year / $10 Lifetime); USD · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free Web2026-10-21 ↗

Free

Free Free unlimited compression for PNG/JPEG/WEBP/HEIC without login; includes ads and a support countdown when ad blockers are active.

Premium One-Year2026-10-21 ↗

—

USD 5/year

Annual USD 5 for 1 year of Premium access: removes ads (No ads) and skips download previews/countdowns (Skip previews).

Premium Lifetime2026-10-21 ↗

USD 10 · one-time payment

Usage / one-time

Usage / one-time USD 10 one-time Lifetime Premium access: removes ads (No ads) and skips download previews/countdowns (Skip previews).

3 plan / billing-period records, all listed; — means that period is not recorded.

RedKetchup online compression and bulk tools are free with all compression settings unlocked. Clicking Upgrade / REMOVE ADS opens the Upgrade to Premium modal offering two lightweight plans: USD 5 One-Year and USD 10 Lifetime to remove ads and skip download previews/countdowns.

Cancellation, sources & verification record

Free tier requires no login; Premium offers USD 5 One-Year and USD 10 one-time Lifetime upgrades under official Terms.

RedKetchup online compressor page and Upgrade to Premium modal ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

Unlimited free local compression; adblock users wait a 20-second support countdown before final file export

Workspace settings and adblock countdown notice are clear and upfront

Evaluation basis & full scores · Overall 91.8/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 90/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	31.5 / 35	Completely free and requires no sign-up (01_landing.png, 02_workspace.png); when an adblocker is active, clicking final Download displays a transparent notice ('The download will begin in 20 seconds. To avoid the countdown... Allow ads or upgrade for $5', 03_download.png) and automatically exports the full-resolution PNG once the timer finishes.	Evidence A →
Interaction restraint	25.5 / 30	Offers industry-leading granular controls for PNG bit depth (8-bit / 24-bit / 32-bit) and dithering algorithms (Atkinson / Floyd-Steinberg / Sierra) plus a split-screen inspector; the only friction is the 20s timer when ads are blocked.	Evidence A →
Background & reputation	18 / 20	Well-regarded independent frontend image processing toolkit (Image Resizer, Compressor, Icon Editor) actively maintained since 2021.	Evidence A →
Engineering & privacy	15 / 15	100% client-side browser Web Worker and HTML5 Canvas execution—all PNG palette quantization and Atkinson dithering happen locally in browser memory (Blob URL) with zero server uploads.	Evidence A →

Capability · 92.5/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	60.5 / 65	Default Auto-Detect (8-bit + Atkinson dithering) preserves native PNG format and shrinks 4,137.9 KB to 1,807.8 KB (56.31% reduction, 2.29× ratio) with PSNR = 39.35 dB and SSIM = 0.9984 (60.5/65)	Evidence A →
Deliverable specifications	20 / 20	100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20)	Evidence A →
Processing speed	12 / 15	Local Web Worker quantization and full-screen preview complete in ~2.2s (0s network upload; adblock users wait a 20s countdown before export) (12.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

iLoveIMG

iloveimg.com · Image compression

92/100

Seven-aspect task score

Login-free compression downloads automatically and links to further edits, reducing this PNG by about 59%; processing is cloud-based with a deletion control.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 59.02% · Output size 1695.6 KB

Detailed facts & historical record

Measured fixture results

File reduction: 59.02% · Output size: 1695.6 KB

Fixture findings

Reduced the tested PNG by about 59% with automatic download and no login; other inputs remain untested.

Original historical observation

iLoveIMG compresses our 4.24 MB (2048×2048) anchor PNG down to 1,695.6 KB (-59.02%) in 3.4s without login and triggers an automatic download at PSNR=34.64 dB and SSIM=0.9953 (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Users who need fast, no-login batch compression of high-resolution PNG/JPG images larger than 5 MB without paying or signing up

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (native resolution preserved, watermark-free PNG auto-download)
Watermark observation: Watermark-free
Batch & API: Supports batch drag-and-drop, Google Drive / Dropbox import, and developer REST API
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 5.6s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 3.4s · End-to-end reference: 5.6s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required for free batch compression
Manual adjustment: Not verified
Interaction observations: Zero registration gates or paywall traps; results download automatically and include a one-click server delete button.

Evidence & scope →

Background & reputation

iLoveIMG / iLovePDF · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: iLoveIMG / iLovePDF
Recorded origin: Barcelona, Spain
Domain history record: 2016–Present (sister site of iLovePDF)
Background & reputation assessment: Operated by the Barcelona-based iLovePDF / iLoveIMG team with ISO/IEC 27001 certification.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Claims deletion within 2 hours; deletion not independently verified

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: HTTPS encrypted upload with an explicit trash button on the download screen to immediately wipe files from servers (auto-deleted within 2 hours).
Retention statement: Claims deletion within 2 hours; deletion not independently verified

Evidence & scope →

Pricing & rules

Web single-user free, monthly, annual and enterprise quote; USD · 2026-10-20

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Basic2026-10-20 ↗

Free

Free Basic tools and limited processing; AI background-removal allowance unspecified

Premium2026-10-20 ↗

USD 9/month

USD 60/year

Annual 2,000 AI credits listed; refresh cycle not stated on the card

All tools, priority support and no ads; 1–25 users selectable

Monthly 2,000 AI credits; reset period not stated on the card

Business2026-10-20 ↗

Contact sales

Quoted

Quoted 25+ users; custom allowance and contracts

4 plan / billing-period records, all listed; — means that period is not recorded.

Pricing, FAQ and removal entry were rechecked. Premium lists 2,000 AI credits, but these pages do not specify removal cost, free image count or credit refresh cycle. Unlimited document processing does not establish unlimited AI removal. FAQ says file-count/size limits block processing; prices include VAT, with region-dependent reverse-charge invoicing.

Verification has gaps; unknown prices and quotas are not inferred.

Cancellation, sources & verification record

Upgrade, downgrade or cancel in account settings; refund terms not separately verified.

Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗

Current pricing and AI credits ↗ · 2026-10-20 Capture 1 ↗

Official handling of usage limits ↗ · 2026-10-20 Capture 1 ↗

Background removal entry recheck ↗ · 2026-10-20 Capture 1 ↗

Allowance & disclosure on test date

Free multi-image batch compression (up to 15–30 images per task) without a strict 5 MB single-file wall

Displays exact before/after KB and percentage saved immediately upon completion

Evaluation basis & full scores · Overall 91.5/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 92.5/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	32.5 / 35	Free tier supports generous multi-file batch uploads without login or tight 5 MB per-file walls; after clicking 'Compress IMAGES', it displays 'Images are now 59% smaller!' and automatically triggers download (01_landing.png, 02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	27.5 / 30	Zero registration gates or paywall traps; results download automatically and include a one-click server delete button.	Evidence A →
Background & reputation	19 / 20	Operated by the Barcelona-based iLovePDF / iLoveIMG team with ISO/IEC 27001 certification.	Evidence A →
Engineering & privacy	13.5 / 15	HTTPS encrypted upload with an explicit trash button on the download screen to immediately wipe files from servers (auto-deleted within 2 hours).	Evidence A →

Capability · 91/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	58 / 65	Reduces the 4,137.9 KB 2048×2048 PNG to 1,695.6 KB (-59.02%, 2.44× ratio) while maintaining native PNG format, PSNR = 34.64 dB, and SSIM = 0.9953 (56.5/65)	Evidence A →
Deliverable specifications	20 / 20	Exports a watermark-free 2048×2048 PNG without login and supports larger single files than 5 MB-capped tools (19.5/20)	Evidence A →
Processing speed	13 / 15	Completes cloud compression in ~3.4s and automatically triggers browser download (13.5/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

ezgif.com

ezgif.com · Image compression

91/100

Seven-aspect task score

A classic 14-year-old no-login free utility supporting on-device WebAssembly lossless compression; ideal for users wanting 100% fidelity without sign-up.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-31
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 13.95% · Output size 3560.8 KB

Detailed facts & historical record

Measured fixture results

File reduction: 13.95% · Output size: 3560.8 KB

Fixture findings

On-device WASM lossless optimization reduced file size by ~14% with flawless PSNR and SSIM fidelity; requires a few seconds of local computation.

Original historical observation

Ezgif provides a genuine lossless PNG compressor powered by OxiPNG: retaining full 2048×2048 dimensions and RGBA transparency, it cuts our 4.24 MB test asset by 13.95% (3,560.8 KB) at absolute fidelity with PSNR = 99.99 dB and SSIM = 1.0 (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Users and developers who require mathematical pixel fidelity (PSNR = 99.99 dB, SSIM = 1.0) while slimming down oversized PNG assets quickly without registration

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (native resolution lossless PNG, zero watermarks)
Watermark observation: Watermark-free
Batch & API: Single or multiple file upload direct in web interface
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 4s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 4s · End-to-end reference: 4s
Date & fixture: 2026-10-31 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required (anonymous utility)
Manual adjustment: Not verified
Interaction observations: Zero mandatory registration, no gating popups, and no artificial countdowns. While display ads are present, they do not disrupt compression and export.

Evidence & scope →

Background & reputation

Ezgif.com · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Ezgif.com
Recorded origin: Latvia
Domain history record: 2012–Present (14 years online)
Background & reputation assessment: Continuously operated since 2012 by independent creators, widely respected for robust integration with standard open-source CLI engines (OxiPNG, ImageMagick, gifsicle).
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: Google AdSense · Google Analytics
Engineering & privacy assessment: CDP network inspection confirms PNG compression executes locally via WebAssembly (squoosh_oxipng_bg.wasm). Server-side processing runs on temporary caches auto-purged within 1-2 hours.
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

Ezgif 100% free web utility structure · 2026-10-30

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-10-30 ↗

Free

Free 100% free without login, up to 100MB file limit, unlimited daily uses

Animated GIF/WebP/AVIF maker, optimizer/compressor, video converter

1 plan / billing-period records, all listed; — means that period is not recorded.

All features are 100% free without sign-up or credit card, supporting files up to 100MB with unlimited conversions.

Cancellation, sources & verification record

Cancellation and refund terms unverified

Ezgif About & Engine Information ↗ · 2026-10-30 Capture 1 ↗

Allowance & disclosure on test date

Unlimited free usage, max 100MB per file

Tool limits and lossless optimization options clearly shown on upload header

Evaluation basis & full scores · Overall 90.8/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 95/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	35 / 35	100% completely free with no subscriptions, paywalls, or resolution reductions. Uploading our 4.24 MB (2048×2048) anchor PNG immediately yields a lossless compressed download (01_landing.png, 02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	28 / 30	Zero mandatory registration, no gating popups, and no artificial countdowns. While display ads are present, they do not disrupt compression and export.	Evidence A →
Background & reputation	18 / 20	Continuously operated since 2012 by independent creators, widely respected for robust integration with standard open-source CLI engines (OxiPNG, ImageMagick, gifsicle).	Evidence A →
Engineering & privacy	14 / 15	CDP network inspection confirms PNG compression executes locally via WebAssembly (squoosh_oxipng_bg.wasm). Server-side processing runs on temporary caches auto-purged within 1-2 hours.	Evidence A →

Capability · 89/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	57 / 65	Lossless OxiPNG compression reduces 4,137.9 KB to 3,560.8 KB (-13.95%, 1.16× ratio) while preserving flawless 100% pixel fidelity (PSNR = 99.99 dB, SSIM = 1.0) (57.0/65)	Evidence A →
Deliverable specifications	20 / 20	Preserves native 2048×2048 dimensions and full alpha transparency with zero watermarks (20.0/20)	Evidence A →
Processing speed	12 / 15	Client-side WebAssembly (OxiPNG) execution takes ~4.0s with zero network upload latency (12.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

imageresizer.com

imageresizer.com · Image compression

91/100

Seven-aspect task score

ImageResizer provides login-free cloud compression with full-resolution 2048×2048 watermark-free export, reducing file size by 78.3% (4.04MB to 899KB) in 5.99s server time; a 10MB single-file free limit and standard banner ads apply.

Tested export 2048 × 2048 · PNG

Historical test · 2026-11-01
Account / tier unconfirmed · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

imageresizer.com native output thumbnail

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 78.26% · Output size 899.4 KB

Detailed facts & historical record

Measured fixture results

File reduction: 78.26% · Output size: 899.4 KB

Fixture findings

Retained original PNG format and alpha channel, scoring 30.58 dB PSNR and 0.9879 SSIM with clean metallic texture and no artifacts.

Original historical observation

Uploaded 4.04 MB (4,137.9 KB) test image; under default smart compression, cloud processing completed in 5.99 seconds yielding 899.41 KB deliverable (78.26% reduction). Micro-details remained unblurred, with 30.58 dB PSNR and 0.9879 SSIM; provides interactive before/after slider with one-click download.

Suitable uses · historical assessment

Not verified

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · Check watermark record

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · Check watermark record
Historical specification note · not an official maximum: 2048×2048 (Zero-watermark native PNG export without login)
Watermark observation: Not verified
Batch & API: Not verified
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 15.36s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 5.99s · End-to-end reference: 15.36s
Date & fixture: 2026-11-01 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

Account requirement unconfirmed

Detailed facts & historical record

Account requirements: Not verified
Sign-in methods: Available without login; supports email registration and paid subscriptions
Manual adjustment: Not verified
Interaction observations: Not verified

Evidence & scope →

Background & reputation

ImageResizer.com · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: ImageResizer.com
Recorded origin: United States
Domain history record: Founded in 2012
Background & reputation assessment: Not verified
External reputation record: Established free online image utility with over 14 years of reliable operation, trusted by developers and creators.

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Claims deletion within 6 hours; deletion not independently verified

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Google Analytics · Google AdSense
Engineering & privacy assessment: Not verified
Retention statement: Claims deletion within 6 hours; deletion not independently verified

Evidence & scope →

Pricing & rules

Site-wide image resizing, compression, cropping, and conversion subscriptions · 2026-11-01

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-11-01 ↗

Free

Free 10MB file limit, up to 5 images per batch, 10 images/day across premium tools

Access to basic image resizer, compressor, converter, and cropping tools；Ad-supported, 5 images per batch, 10MB per image；Free indefinitely, no renewal；Perpetual access

Pro2026-11-01 ↗

USD 6.99/month

—

Monthly 50MB file limit, up to 20 images per batch, 100 images/day across premium tools

Full access to Image Resizer tools, zero ads, priority processing；50MB per image, 20 images per batch

Rules [1] [2]

Ultra2026-11-01 ↗

USD 9.99/month

—

Monthly 1GB file limit, up to 100 images per batch, unlimited images

Highest specifications across all tools, 24/7 dedicated support, zero ads；1GB per image, 100 images per batch

Rules [1] [2]

3 plan / billing-period records, all listed; — means that period is not recorded.

[1] Monthly automatic renewal, cancel anytime in dashboard

[2] Valid during subscription period

Free tier covers up to 10MB/image and 5 images/batch; Pro ($6.99/mo) and Ultra ($9.99/mo) offer higher limits with no hidden fees and cancel-anytime policy.

Cancellation, sources & verification record

Cancellation and refund terms unverified

ImageResizer Official Pricing ↗ · 2026-11-01 Capture 1 ↗

Allowance & disclosure on test date

10MB per file limit, up to 5 images per batch, no daily hard cutoff

Not recorded

Evaluation basis & full scores · Overall 90.7/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 91/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	34 / 35	Explanation unavailable	Evidence A →
Interaction restraint	27 / 30	Explanation unavailable	Evidence A →
Background & reputation	16 / 20	Explanation unavailable	Evidence A →
Engineering & privacy	14 / 15	Explanation unavailable	Evidence A →

Capability · 90.5/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	58 / 65	Size Reduction: -78.26% (4137.9 KB → 899.4 KB, 4.6× ratio) · PSNR: 30.58 dB · SSIM: 0.9879	Evidence A →
Deliverable specifications	20 / 20	Clean unwatermarked export (8/8); Export spec: 2048×2048 (Zero-watermark native PNG export without login)	Evidence A →
Processing speed	12.5 / 15	Network-observed server wait: 5.99s (API mode: cloud_server; network upload 9.37s / end-to-end 15.36s shown for reference only, never penalized)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

online-convert.com

online-convert.com · Image compression

90/100

Seven-aspect task score

Veteran German file conversion platform offering guest PNG compression (2048×2048) with 55.99% size reduction, 39.27 dB PSNR, 0.9984 SSIM, and intact alpha channel in 7.5s server wait.

Tested export 2048 × 2048 · PNG

Historical test · 2026-11-02
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

online-convert.com native output thumbnail

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 55.99% · Output size 1821 KB

Detailed facts & historical record

Measured fixture results

File reduction: 55.99% · Output size: 1821 KB

Fixture findings

Guest export of native 2048×2048 PNG (1.8 MB · -55.99%) with high visual fidelity (39.27 dB PSNR, 0.9984 SSIM) and intact alpha channel in 7.5s server wait.

Original historical observation

Online-Convert cloud backend compressed the 4,137.9 KB anchor image to 1,821.0 KB (55.99% reduction) in 7.5s server wait, achieving 39.27 dB PSNR and 0.9984 SSIM while maintaining sharp text edges and clean transparency.

Suitable uses · historical assessment

Users seeking a trusted guest-usable tool to shrink PNG files by over 50% with high fidelity (PSNR 39.27 dB, SSIM 0.9984) and cloud batch workflows

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048 × 2048 (original size watermark-free PNG)
Watermark observation: Watermark-free
Batch & API: Supports batch queuing and advanced conversion parameter tuning
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

End-to-end time unrecorded; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 7.5s
Date & fixture: 2026-11-02 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: Basic compression usable without login; email/password, Google, and Apple login supported for advanced tiers
Manual adjustment: Not verified
Interaction observations: Not verified

Evidence & scope →

Background & reputation

QaamGo Media GmbH · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: QaamGo Media GmbH
Recorded origin: Cologne, Germany
Domain history record: Domain registered in 2009 (operating for over 15 years)
Background & reputation assessment: Not verified
External reputation record: Established German file conversion suite with transparent EU corporate and GDPR disclosures.

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Claims deletion within 24 hours; deletion not independently verified

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Google Analytics · Google AdSense
Engineering & privacy assessment: Not verified
Retention statement: Claims deletion within 24 hours; deletion not independently verified

Evidence & scope →

Pricing & rules

Online-Convert free trial credits, Pay As You Go packages and subscriptions · 2026-10-31

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free Trial2026-10-31 ↗

Free

Free 16 free trial credits upon signup without payment details

Supports evaluation of most conversion and compression tools；Shared standard queue with file size limits；No automatic renewal；Valid until credits exhausted

Pay As You Go (240 Credits)2026-10-31 ↗

USD 8 · one-time payment

Usage / one-time

Usage / one-time 240 credits ($0.0333/credit), valid for 1 year

Access to all tools, no waiting queue, priority processing

Rules [1] [2] [3]

Pay As You Go (480 Credits)2026-10-31 ↗

USD 14 · one-time payment

Usage / one-time

Usage / one-time 480 credits ($0.0292/credit), valid for 1 year

Full tools access, zero wait queue, ad-free experience

Rules [1] [2] [3]

Monthly Subscription (2800 Credits)2026-10-31 ↗

USD 29/month

—

Monthly 2800 credits per month (up to 2800 standard tasks or 350 AI tasks)

All features, no waiting queue, batch concurrent processing, no ads；Unused monthly credits do not roll over；Renews monthly, cancel anytime in dashboard；Valid during active billing period

Annual Subscription (2800 Credits/mo)2026-10-31 ↗

—

Annual price not verified

Annual 2800 credits per month; UI states $23.17 USD/month equivalent without full annual total

All features, no waiting queue, batch concurrent processing, no ads；Annual billing total not stated upfront; held as null with partial coverage；Renews annually；Valid during annual period

5 plan / billing-period records, all listed; — means that period is not recorded.

[1] Credits expire after 1 year

[2] One-time purchase, no auto-renewal

[3] Expires 1 year after purchase

Anonymous conversions for basic files; 16 free trial credits upon registration; Pay As You Go packs: 240 credits for $8, 480 for $14; monthly subscription $29/mo for 2800 credits; annual plans state monthly equivalents without full upfront invoice total.

Verification has gaps; unknown prices and quotas are not inferred.

Cancellation, sources & verification record

Cancellation and refund terms unverified

Online-Convert Plans & Pricing ↗ · 2026-10-31 Capture 1 ↗

Allowance & disclosure on test date

Guest users can compress everyday files directly; 16 trial credits granted upon registration

Transparent upfront free tier disclosure and clear credit packs with zero post-conversion paywall traps

Evaluation basis & full scores · Overall 90.4/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 86.5/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	32 / 35	Explanation unavailable	Evidence →
Interaction restraint	24 / 30	Explanation unavailable	Evidence A →
Background & reputation	17 / 20	Explanation unavailable	Evidence →
Engineering & privacy	13.5 / 15	Explanation unavailable	Evidence A →

Capability · 92/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	60 / 65	Size Reduction: -55.99% (4137.9 KB → 1821 KB, 2.27× ratio) · PSNR: 39.27 dB · SSIM: 0.9984	Evidence A →
Deliverable specifications	20 / 20	Clean unwatermarked export (8/8); Export spec: 2048 × 2048 (original size watermark-free PNG)	Evidence A →
Processing speed	12 / 15	Network-observed server wait: 7.5s (API mode: async_verified; network upload N/A / end-to-end N/A shown for reference only, never penalized)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

DupliChecker

duplichecker.com · Image compression

90/100

Seven-aspect task score

Upfront free limits and login-free batch downloads accompany roughly halved PNG size; each image is capped at 5MB amid many ads and tool links.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-19
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 53.34% · Output size 1930.7 KB

Detailed facts & historical record

Measured fixture results

File reduction: 53.34% · Output size: 1930.7 KB

Fixture findings

Reduced this fixture by about 53% without login or a watermark; the page contains many surrounding links.

Original historical observation

While DupliChecker's page has many SEO cross-links, its core compression pipeline is solid: shrinking our 4.14 MB anchor PNG by 53.34% to 1.89 MB at PSNR=39.54 dB and SSIM=0.9985 with no login required (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Users who want quick no-login compression for PNG/JPEG files under 5 MB with manual quality slider control

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (native resolution watermark-free PNG direct export)
Watermark observation: Watermark-free
Batch & API: Supports 10-image batch upload and one-click Download All
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 7.6s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 5.4s · End-to-end reference: 7.6s
Date & fixture: 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required
Manual adjustment: Not verified
Interaction observations: Supports no-login single or Download All batch export, though the surrounding page layout is cluttered with internal SEO tool links and ad slots.

Evidence & scope →

Background & reputation

DupliChecker (duplichecker.com) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: DupliChecker (duplichecker.com)
Recorded origin: Multi-Tool Web Portal
Domain history record: 2006–Present (20-year utility portal)
Background & reputation assessment: Long-standing SEO and text/image utility portal (duplichecker.com) operating since 2006.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: Delivers compressed outputs via temporary AWS S3 buckets (temp-ca.s3.amazonaws.com) and states that temporary files are automatically purged.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

DupliChecker online Image Compressor tool (excludes separate Plagiarism, Paraphrasing, and Reverse Image Search plans) · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Image Compressor Free2026-10-21 ↗

Free

Free Free without login; up to 10 images per batch, max 5 MB each (JPG/JPEG/PNG).

1 plan / billing-period records, all listed; — means that period is not recorded.

The Image Compressor page explicitly states "100% Free" and supports up to 10 images per batch at max 5 MB each (JPG/JPEG/PNG) without login. Site-wide Pricing links cover Plagiarism, Paraphrasing, and Reverse Image Search quotas; image compression requires no subscription.

Cancellation, sources & verification record

The Image Compressor tool is free to use and involves no subscription charges.

DupliChecker official online Image Compressor page ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

Free guests can upload up to 10 images per batch, max 5 MB per image

'Upload Up to 10 images, max 5MB each' is printed directly inside the upload box

Evaluation basis & full scores · Overall 89.8/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 84.5/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	31 / 35	Clearly states free tier limits inside the dropzone ('Upload Up to 10 images, max 5MB each.', 01_landing.png); uploading our 4.14 MB anchor PNG and clicking Compress Image immediately reveals a free 'Save -53% (1.89 MB)' download button with zero paywalls (02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	24.5 / 30	Supports no-login single or Download All batch export, though the surrounding page layout is cluttered with internal SEO tool links and ad slots.	Evidence A →
Background & reputation	16.5 / 20	Long-standing SEO and text/image utility portal (duplichecker.com) operating since 2006.	Evidence A →
Engineering & privacy	12.5 / 15	Delivers compressed outputs via temporary AWS S3 buckets (temp-ca.s3.amazonaws.com) and states that temporary files are automatically purged.	Evidence A →

Capability · 92/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	60.2 / 65	Preserves native 2048×2048 PNG format while reducing 4,137.9 KB to 1,930.7 KB (53.34% reduction, 2.14× ratio) with PSNR = 39.54 dB and SSIM = 0.9985 (60.2/65)	Evidence A →
Deliverable specifications	20 / 20	100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20)	Evidence A →
Processing speed	11.8 / 15	Cloud upload and AWS S3 compressed delivery complete in ~7.6s (~5.4s server processing) (11.8/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

Optimizilla

imagecompressor.com · Image compression

88/100

Seven-aspect task score

Free login-free on-device processing offers color controls and about 58% PNG reduction; download-like and fullscreen ads create misclick risk.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 57.64% · Output size 1752.7 KB

Detailed facts & historical record

Measured fixture results

File reduction: 57.64% · Output size: 1752.7 KB

Fixture findings

Offers before/after preview and colour adjustment; distinguish nearby ad buttons from the real download.

Original historical observation

Optimizilla (imagecompressor.com) shines with its interactive Before/After comparison canvas and 'Colors: 224' fine-tuning slider, shrinking our 4.14 MB anchor by 57.64% to 1.75 MB at PSNR=38.98 dB; however, users must watch out for two green 'DOWNLOAD EXTENSION' fake download ad banners directly above and below the workspace (01_landing.png, 02_workspace.png).

Suitable uses · historical assessment

Users who want to manually fine-tune PNG palette color counts (2–256 colors) with a live Before/After preview—provided they avoid the fake 'DOWNLOAD EXTENSION' ad banners

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (no-login native-resolution watermark-free PNG direct export)
Watermark observation: Watermark-free
Batch & API: Supports multi-image batch compression in browser; no developer API
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 11.88s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 11.88s · End-to-end reference: 11.88s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required (no account system on the site)
Manual adjustment: Not verified
Interaction observations: While there are no sign-up walls, the workspace is flanked top and bottom by deceptive green 'DOWNLOAD EXTENSION / Click "Download" -> Add Trusted Spot Extension' ad banners, and a full-screen Google AdSense overlay (#aswift_3) intercepted the initial COMPRESS click (01_landing.png, 02_workspace.png).

Evidence & scope →

Background & reputation

Optimizilla / ImageCompressor.com · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Optimizilla / ImageCompressor.com
Recorded origin: Independent European Web Utility (Launched 2014)
Domain history record: 2014–Present (12-year image compression benchmark)
Background & reputation assessment: Operating since 2014 under the Optimizilla brand, ranking among the highest-traffic search destinations for online image compression.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: Not verified
Engineering & privacy assessment: Modernized architecture runs 100% local in-browser WebAssembly palette quantization ('All processing happens in your browser'), so user photos are never uploaded to a remote server.
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

ImageCompressor.com in-browser online image compressor · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free Browser Compressor2026-10-21 ↗

Free

Free Free without login; local browser processing for JPEG/PNG/WebP/GIF/SVG with batch compression and per-image quality tuning.

1 plan / billing-period records, all listed; — means that period is not recorded.

The official page states that this free online tool runs entirely in the browser with no server uploads required, supporting batch JPEG, PNG, WebP, GIF, and SVG compression with per-image quality tuning, supported by display ads.

Cancellation, sources & verification record

Ad-supported free tool with no accounts or subscription charges.

ImageCompressor.com official page and instructions ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

Supports multi-file batch drag-and-drop and per-image palette color tuning (2–256 colors) with no daily cap

All features and sliders are unlocked upfront with zero hidden paywalls

Evaluation basis & full scores · Overall 88.4/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 84.5/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	32 / 35	100% free across the entire site with zero paywalls or subscription prompts; uploading the 4.14 MB (2048×2048) anchor image and clicking COMPRESS immediately unlocks the SAVE ALL export button without login (01_landing.png, 02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	20 / 30	While there are no sign-up walls, the workspace is flanked top and bottom by deceptive green 'DOWNLOAD EXTENSION / Click "Download" -> Add Trusted Spot Extension' ad banners, and a full-screen Google AdSense overlay (#aswift_3) intercepted the initial COMPRESS click (01_landing.png, 02_workspace.png).	Evidence A →
Background & reputation	18 / 20	Operating since 2014 under the Optimizilla brand, ranking among the highest-traffic search destinations for online image compression.	Evidence A →
Engineering & privacy	14.5 / 15	Modernized architecture runs 100% local in-browser WebAssembly palette quantization ('All processing happens in your browser'), so user photos are never uploaded to a remote server.	Evidence A →

Capability · 90/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	59.5 / 65	Default 224-color PNG palette quantization shrinks the 4,137.9 KB anchor down to 1,752.7 KB (-57.64%, 2.36× ratio) at PSNR = 38.98 dB and SSIM = 0.9983, with an interactive 2–256 Colors slider and live Before/After canvas preview (59.5/65)	Evidence A →
Deliverable specifications	20 / 20	Preserves 100% of the 2048×2048 pixel dimensions and native PNG format without watermarks or login requirements (20.0/20)	Evidence A →
Processing speed	10.5 / 15	Local browser 224-color palette quantization on the 2048×2048 PNG takes ~11.88s and requires clicking COMPRESS followed by SAVE ALL (10.5/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

Nero AI

ai.nero.com · Image compression

88/100

Seven-aspect task score

Exports a full 2048×2048 watermark-free PNG for 1 free credit with three compression modes and high fidelity (38.19 dB PSNR), cutting file size by roughly half.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-23
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗Additional screenshot 1 ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 49.74% · Output size 2079.8 KB

Detailed facts & historical record

Measured fixture results

File reduction: 49.74% · Output size: 2079.8 KB

Fixture findings

Reduces the standard PNG by 49.74% in native PNG format at 38.19 dB PSNR and 0.9979 SSIM with virtually lossless detail.

Original historical observation

Nero AI Image Compressor shrinks the 4,237,170-byte (2048×2048) anchor PNG to 2,129,766 bytes (-49.74%) in High mode while maintaining native PNG format and 38.19 dB PSNR / 0.9979 SSIM.

Suitable uses · historical assessment

Users already in the Nero AI ecosystem who want high-PSNR (38.19 dB) PNG compression up to 50 MB / 16 MP with adjustable High/Low/Custom levels

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (native PNG format preserved, watermark-free export)
Watermark observation: Watermark-free
Batch & API: Supports multi-file batch upload and REST API
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 15.36s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 6.56s · End-to-end reference: 15.36s
Date & fixture: 2026-10-23 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: Supports guest trial quota and Google / Email account login with daily free Nero Credits
Manual adjustment: Not verified
Interaction observations: Provides a clean before/after zoom workspace showing "4.0MB → 2.0MB (-50.0%)" and exports the native 2048×2048 watermark-free PNG directly upon clicking Download (03_download.png).

Evidence & scope →

Background & reputation

Nero AG · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Nero AG
Recorded origin: Karlsruhe, Germany
Domain history record: Founded 1995 (Nero Burning ROM / Nero AI Suite)
Background & reputation assessment: Developed by Nero AG (Karlsruhe, Germany; founded in 1995), a long-established multimedia software company operating the Nero AI web and mobile suite.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: No third-party services listed in this record; this is not proof that none exist.
Engineering & privacy assessment: HTTPS upload to ai.nero.com/api/v2/file/upload followed by asynchronous task polling (/api/v2/task/status, 6.56s server wait) and native PNG Blob export.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

Nero AI web plans (Free / Standard / Yearly promo / Business); USD · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-10-21 ↗

Free

Free 5 free guest runs without login; 10 one-time credits per registered account (max 1000×1000px upload, 5 images/batch; 2× costs 1 credit, 4× costs 2 credits).

Standard Monthly (300 credits)2026-10-21 ↗

USD 21.95/month

—

Monthly 300 credits/month (promotional USD 21.95/month, regular USD 24.99/month); up to 4000×4000px upload, 30 images/batch, priority processing, and 8× upscaling.

Standard Yearly (3,000 credits/yr)2026-10-21 ↗

—

Annual price not verified

Annual 3,000 credits/year; promotional banner displays USD 7.66/month equivalent.

Public page displays only the 7.66 USD/month equivalent without showing the annual invoice total before login.

Business2026-10-21 ↗

Contact sales

Quoted

Quoted Custom credits and pricing (up to 200 images/batch, highest priority, API processing, and dedicated server).

4 plan / billing-period records, all listed; — means that period is not recorded.

The official pricing page and credit table state that guests get 5 free runs and registered Free accounts receive 10 one-time Nero Credits (Standard/Photo/Anime 2× costs 1 credit/image, 4× costs 2 credits/image, paid-only 8× costs 4 credits/image). Standard monthly is USD 21.95/month promotional (regular USD 24.99/month, 300 credits/month). The yearly promo banner displays only "7.66 USD per month" (3,000 credits/year) without printing the annual invoice total before login, so the annual total is marked unverified.

Verification has gaps; unknown prices and quotas are not inferred.

Cancellation, sources & verification record

Cancel anytime by turning off auto-renewal in account settings (remaining credits expire at the end of the billing period); FAQ states refunds are not allowed once Nero Credits have been used.

Nero AI official pricing, credit consumption table, and FAQ ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

Consumes 1 Nero Credit per image compression task (free accounts receive initial and daily check-in credits)

Discloses "1 Nero Credit will be used" on the Start button before processing

Evaluation basis & full scores · Overall 88.4/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 87/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	29 / 35	Landing page clearly states "Free: up to 16 MP & 50 MB per image" (01_landing.png); after uploading the 4.04 MB (2048×2048) anchor PNG, the workspace explicitly discloses "1 Nero Credit will be used" before clicking Start and offers High / Low / Custom compression levels (02_result.png).	Evidence A →
Interaction restraint	26 / 30	Provides a clean before/after zoom workspace showing "4.0MB → 2.0MB (-50.0%)" and exports the native 2048×2048 watermark-free PNG directly upon clicking Download (03_download.png).	Evidence A →
Background & reputation	19 / 20	Developed by Nero AG (Karlsruhe, Germany; founded in 1995), a long-established multimedia software company operating the Nero AI web and mobile suite.	Evidence A →
Engineering & privacy	13 / 15	HTTPS upload to ai.nero.com/api/v2/file/upload followed by asynchronous task polling (/api/v2/task/status, 6.56s server wait) and native PNG Blob export.	Evidence A →

Capability · 89/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	59 / 65	Compresses the 4,237,170-byte (4,137.9 KB) 2048×2048 PNG down to 2,129,766 bytes (2,079.8 KB, -49.74%, 1.99× ratio) in High mode while preserving native PNG format, achieving PSNR = 38.19 dB and SSIM = 0.9979 (59.0/65)	Evidence A →
Deliverable specifications	18 / 20	Preserves full 2048×2048 resolution and native PNG container without watermarks, requiring 1 free Nero Credit per task (18.0/20)	Evidence A →
Processing speed	12 / 15	Single-sample network timing: 5.44s upload + 6.56s server async task processing (15.36s end-to-end) (12.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

XConvert

xconvert.com · Image compression

88/100

Seven-aspect task score

Free login-free target-size compression retains full-size PNG and offers deletion; it uses cloud processing and shows sharing and review prompts.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-19
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 48.14% · Output size 2146.1 KB

Detailed facts & historical record

Measured fixture results

File reduction: 48.14% · Output size: 2146.1 KB

Fixture findings

Exported full-size PNG with about 48% size reduction in this test; other files need separate tests.

Original historical observation

XConvert offers a remarkably clean, ad-free interface. Uploading our 4.14 MB anchor PNG completes edge compression in 7 seconds, exporting a 2.15 MB native PNG (-48.14%) at PSNR=38.55 dB and SSIM=0.9981 (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Users who want a clean ad-free interface with post-compression online Preview and Re-edit capabilities

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (native resolution watermark-free PNG direct export)
Watermark observation: Watermark-free
Batch & API: Supports multi-file queue uploads and unified `/downloads` management
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 9.1s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 7s · End-to-end reference: 9.1s
Date & fixture: 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required; optional account sign-in available
Manual adjustment: Not verified
Interaction observations: Clean ad-free workspace; the downloads page only shows gentle backlink-sharing and Trustpilot review cards.

Evidence & scope →

Background & reputation

XConvert (xconvert.com) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: XConvert (xconvert.com)
Recorded origin: Online File Conversion & Compression Provider
Domain history record: 2018–Present (8 years in operation)
Background & reputation assessment: Operated by the XConvert team since 2018 on AWS EC2 edge clusters.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Processing location unconfirmed；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Processing location unconfirmed
Third-party tracking record: Not verified
Engineering & privacy assessment: Provides one-click Delete All / Clear All buttons on the `/downloads` queue page so users can immediately purge processed files from edge servers.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

XConvert USD web Basic / Pro and free conversion · 2026-10-20

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Web free2026-10-20 ↗

Free

Free Free PDF-to-DOCX without watermarks; no OCR. PDF-specific count and size limits are not separately listed.

Basic2026-10-20 ↗

USD 4.99/month

USD 49.99/year

Monthly 1 GB files; 10 concurrent non-video tasks; 4 hours/task; 8 processing hours/day.

Annual 1 GB files; 10 concurrent non-video tasks; 4 hours/task; 8 processing hours/day.

Pro2026-10-20 ↗

USD 9.99/month

USD 99.99/year

Monthly 4 GB files; 25 concurrent non-video tasks; 4 hours/task; 24 processing hours/day.

Annual 4 GB files; 25 concurrent non-video tasks; 4 hours/task; 24 processing hours/day.

5 plan / billing-period records, all listed; — means that period is not recorded.

Monthly and actual annual bills appear on one pricing page. Daily video counts are not PDF allowances. The PDF-to-DOCX page explicitly says it does not perform OCR.

Verification has gaps; unknown prices and quotas are not inferred.

Cancellation, sources & verification record

Cancel anytime in the User Portal; no refunds, with access through the paid period.

Official feature and pricing page ↗ · 2026-10-20 Capture 1 ↗

Allowance & disclosure on test date

Free no-login compression and export for standard files; oversized files and priority queues require Pro

Workspace options and download queue status are transparent

Evaluation basis & full scores · Overall 88.3/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 85.5/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	30.5 / 35	Provides rich free compression settings (percentage quality, target file size, or lossless, 01_landing.png, 02_workspace.png); clicking Compress without login navigates to `/downloads` and immediately offers a free Download button ('New size: 2.20 MB, 52% of the original 4.24 MB', 03_download.png) with zero paywall locks.	Evidence A →
Interaction restraint	25.5 / 30	Clean ad-free workspace; the downloads page only shows gentle backlink-sharing and Trustpilot review cards.	Evidence A →
Background & reputation	16.5 / 20	Operated by the XConvert team since 2018 on AWS EC2 edge clusters.	Evidence A →
Engineering & privacy	13 / 15	Provides one-click Delete All / Clear All buttons on the `/downloads` queue page so users can immediately purge processed files from edge servers.	Evidence A →

Capability · 89.5/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	58 / 65	Default 'Max 80%' setting preserves native 2048×2048 PNG format and shrinks 4,137.9 KB to 2,146.1 KB (48.14% reduction, 1.93× ratio) at PSNR = 38.55 dB and SSIM = 0.9981 (58.0/65)	Evidence A →
Deliverable specifications	20 / 20	100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20)	Evidence A →
Processing speed	11.5 / 15	Edge server explicitly logs 'Completed: Took 7 seconds', delivering steady cloud performance (11.5/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

Aiseesoft

aiseesoft.com · Image compression

87/100

Seven-aspect task score

No-login 2048×2048 watermark-free PNG export for files under 5 MB with 40-image batching and a 78.39% size reduction, though processing takes 11.68s.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-23
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 78.39% · Output size 894.2 KB

Detailed facts & historical record

Measured fixture results

File reduction: 78.39% · Output size: 894.2 KB

Fixture findings

Shrinks the 4.14 MB standard PNG by 78.39% to 894.2 KB in native PNG format at 31.12 dB PSNR and 0.9896 SSIM.

Original historical observation

Aiseesoft Free Image Compressor shrinks the 4.24 MB (2048×2048) anchor PNG down to 894.2 KB (-78.39%, 4.63× ratio) without login, preserving native PNG dimensions at PSNR=31.12 dB and SSIM=0.9896.

Suitable uses · historical assessment

Users looking for high-ratio (-78%) no-login PNG compression on files under 5 MB without creating an account

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (native PNG format preserved, no-login watermark-free export)
Watermark observation: Watermark-free
Batch & API: Supports up to 40 images in batch with one-click Download All
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 11.68s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 11.68s · End-to-end reference: 11.68s
Date & fixture: 2026-10-23 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: Completely guest-accessible; no login or registration required
Manual adjustment: Not verified
Interaction observations: Zero registration walls or popups; displays a clean inline progress bar ("4.04 MB → 894.19 KB -78%") with direct Download and Download All buttons, alongside a single text link for its desktop video app.

Evidence & scope →

Background & reputation

Aiseesoft Studio · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Aiseesoft Studio
Recorded origin: Hong Kong / Shenzhen, China
Domain history record: 2008–Present
Background & reputation assessment: Operated by Aiseesoft Studio (established multimedia and document utility vendor since 2008).
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: No third-party services listed in this record; this is not proof that none exist.
Engineering & privacy assessment: Direct HTTPS multipart POST to image-api.aiseesoft.com/imageCompress with CDN delivery via istorage-cloud.com; no account required.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

This web background remover; excludes desktop software and stock subscriptions · 2026-10-20

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free web tool2026-10-20 ↗

Free

Free Officially described as fully free; no paid tier listed

No published count or maximum output size; this does not establish unlimited HD

1 plan / billing-period records, all listed; — means that period is not recorded.

No published count or maximum output size; this does not establish unlimited HD

Cancellation, sources & verification record

Cancellation and refund terms follow official checkout and help policies.

Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗

Allowance & disclosure on test date

Free batch compression up to 40 images at a time, max 5 MB per image

Clearly discloses "Up to 40 images, max 5MB each" inside the upload box before upload

Evaluation basis & full scores · Overall 86.7/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 86/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	31 / 35	Landing page explicitly states "100% Free — Up to 40 images, max 5MB each" right inside the upload dropzone (01_landing.png); the 4.04 MB anchor PNG is compressed and downloaded without login or paywall prompts (02_result.png, 03_download.png).	Evidence A →
Interaction restraint	26 / 30	Zero registration walls or popups; displays a clean inline progress bar ("4.04 MB → 894.19 KB -78%") with direct Download and Download All buttons, alongside a single text link for its desktop video app.	Evidence A →
Background & reputation	16.5 / 20	Operated by Aiseesoft Studio (established multimedia and document utility vendor since 2008).	Evidence B →
Engineering & privacy	12.5 / 15	Direct HTTPS multipart POST to image-api.aiseesoft.com/imageCompress with CDN delivery via istorage-cloud.com; no account required.	Evidence A →

Capability · 87/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	57.5 / 65	Aggressively compresses the 4,237,170-byte (4,137.9 KB) 2048×2048 PNG down to 915,651 bytes (894.2 KB, -78.39%, 4.63× ratio) while keeping native 2048×2048 PNG format, achieving PSNR = 31.12 dB and SSIM = 0.9896 (57.5/65)	Evidence A →
Deliverable specifications	19 / 20	Exports a full 2048×2048 watermark-free PNG without login, though single files are capped at 5 MB (19.0/20)	Evidence A →
Processing speed	10.5 / 15	Single-sample XHR timing (image-api.aiseesoft.com/imageCompress): 11.68s combined upload and server compression (10.5/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

Compressor.io

compressor.io · Image compression

86/100

Seven-aspect task score

Free size and Pro feature limits are disclosed upfront; login-free export retains full-size PNG with good quality, alongside banner ads.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 47.38% · Output size 2177.3 KB

Detailed facts & historical record

Measured fixture results

File reduction: 47.38% · Output size: 2177.3 KB

Fixture findings

Reduced this fixture by about 47% with gradients retained; the recorded free file limit was 10MB.

Original historical observation

Compressor.io adopts a conservative high-fidelity strategy in default Lossy mode: compressing our 4,137.9 KB master to 2,177.3 KB (-47.38%, 02_workspace.png) while maintaining 38.39 dB PSNR and 0.9980 SSIM with smooth dark gradients and clear upfront 10 MB limit disclosure.

Suitable uses · historical assessment

Web designers compressing images under 10 MB who want high visual fidelity (PSNR > 38 dB) and easy switching between Lossy and Lossless modes

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 full-resolution PNG free direct export (up to 10 MB per file)
Watermark observation: Watermark-free
Batch & API: Supports multi-file drag-and-drop and one-click Download All
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 10.5s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 8.4s · End-to-end reference: 10.5s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required (email login for Pro subscribers)
Manual adjustment: Not verified
Interaction observations: Displays Google AdSense banners above and below the workspace, but the orange 'Download' and 'Download All' buttons are clean and direct without registration popups (02_workspace.png, 03_download.png).

Evidence & scope →

Background & reputation

Compressor.io · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Compressor.io
Recorded origin: France / European Independent Tool Team
Domain history record: 2013–Present (13-year established image optimizer)
Background & reputation assessment: Well-known online image optimization service operating since 2013 with strong adoption among web designers and developers.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: Supports anonymous no-login compression; temporary download links are cleaned up automatically after the session.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

Compressor.io web plans (Free / Web Compressor Pro); USD · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-10-21 ↗

Free

Free Free without login; max 10 MB per file, up to 50 compressions/day (supports JPEG/PNG/SVG/GIF/WEBP lossy and lossless modes).

Web Compressor Pro2026-10-21 ↗

—

USD 50/year

Annual USD 50/year (1 user); max 20 MB per file, unlimited compressions, custom compression quality, image resizing, auto-rename, and no ads.

Annual subscription; cancel anytime in the Account dashboard

2 plan / billing-period records, all listed; — means that period is not recorded.

The official pricing page currently offers Free (max 10 MB per file, up to 50 lossy/lossless compressions per day) and Web Compressor Pro annual subscription (USD 50/year, max 20 MB per file, unlimited compressions, custom quality, image resizing, auto-rename, and no ads).

Cancellation, sources & verification record

Cancel anytime in the Account dashboard; official FAQ states a 7-day full refund with no questions asked (credit card refunds take 3–5 working days).

Compressor.io official pricing and features comparison page ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

Free up to 10 MB per file with both Lossy and Lossless modes; Custom quality and image resizing require Pro

Discloses 'Max 10 MB' directly above the Select files button

Evaluation basis & full scores · Overall 86.3/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 88/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	31 / 35	Clearly states 'compress jpg, png, gif, svg, webp. Max 10 MB.' inside the upload zone (01_landing.png); advanced custom resize and rename options are clearly badged 'PRO ONLY' upfront with zero post-upload paywall.	Evidence A →
Interaction restraint	25 / 30	Displays Google AdSense banners above and below the workspace, but the orange 'Download' and 'Download All' buttons are clean and direct without registration popups (02_workspace.png, 03_download.png).	Evidence A →
Background & reputation	18 / 20	Well-known online image optimization service operating since 2013 with strong adoption among web designers and developers.	Evidence A →
Engineering & privacy	14 / 15	Supports anonymous no-login compression; temporary download links are cleaned up automatically after the session.	Evidence A →

Capability · 85.5/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	55.5 / 65	Reduces file size by 47.38% (1.90×) while achieving 38.39 dB PSNR and 0.9980 SSIM with high visual fidelity (55.5/65)	Evidence A →
Deliverable specifications	18.5 / 20	Preserves full 2048×2048 resolution and native PNG format with one-click no-login download (18.5/20)	Evidence A →
Processing speed	11.5 / 15	Total cloud upload and optimization time ~10.5s (~8.4s pure server processing) (11.5/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

ShortPixel

shortpixel.com · Image compression

86/100

Seven-aspect task score

Login-free access offers three compression modes without third-party ads and discloses batch and size limits; this run cut size about 68% using cloud processing.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 67.54% · Output size 1343 KB

Detailed facts & historical record

Measured fixture results

File reduction: 67.54% · Output size: 1343 KB

Fixture findings

Offers three modes without login; the default reduced this fixture by about 68%, with quality trade-offs to inspect.

Original historical observation

ShortPixel's online compressor is completely ad-free, discloses its 10 MB guest limit upfront (01_landing.png), and freely unlocks Lossy, Glossy, and Lossless modes. In default Lossy mode, it shrinks our 4,137.9 KB PNG to 1,343.0 KB (-67.54%, 3.08× ratio, 02_workspace.png) at 34.72 dB PSNR and 0.9954 SSIM.

Suitable uses · historical assessment

Webmasters and designers who want an ad-free workspace with free access to Lossy, Glossy (photographer-grade), and Lossless modes

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 full-resolution PNG free direct export (up to 10 MB and 50 files without login)
Watermark observation: Watermark-free
Batch & API: Supports up to 50 files per batch on web, plus WordPress plugins and REST API
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 12.2s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 9.8s · End-to-end reference: 12.2s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required (free account login removes the 10 MB per-file cap)
Manual adjustment: Not verified
Interaction observations: Clean workspace with zero third-party ad banners, offering Lossy / Glossy / Lossless mode toggles and direct one-click PNG download from the thumbnail card (02_workspace.png, 03_download.png).

Evidence & scope →

Background & reputation

ShortPixel (ID Scout SRL) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: ShortPixel (ID Scout SRL)
Recorded origin: Bucharest, Romania (EU GDPR compliant)
Domain history record: 2014–Present (12-year image optimization specialist)
Background & reputation assessment: Operated by ShortPixel (ID Scout SRL, founded in 2014), one of the most widely installed image optimization providers in the WordPress ecosystem.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: Processes images via ShortPixel's GDPR-compliant European cloud cluster without requiring personal details for guests.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

ShortPixel free web tool, one-time non-expiring credit packs, and annual unlimited plans; USD · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free Web / Free Plan2026-10-21 ↗

Free

Free Web tool free without login up to 50 images/batch and ≤10 MB/file (login removes 10 MB limit); Free account includes 100 credits/month.

One-time 30K2026-10-21 ↗

USD 19.99 · one-time payment

Usage / one-time

Usage / one-time 30,000 credits (never expire) + 100 AI credits/month + 150 GB CDN traffic across unlimited websites. Rules [1]

One-time 50K2026-10-21 ↗

USD 29.99 · one-time payment

Usage / one-time

Usage / one-time 50,000 credits (never expire) + 100 AI credits/month + 250 GB CDN traffic across unlimited websites. Rules [1]

One-time 100K2026-10-21 ↗

USD 49.99 · one-time payment

Usage / one-time

Usage / one-time 100,000 credits (never expire) + 100 AI credits/month + 500 GB CDN traffic across unlimited websites. Rules [1]

One-time 250K2026-10-21 ↗

USD 99 · one-time payment

Usage / one-time

Usage / one-time 250,000 credits (never expire) + 100 AI credits/month + 1.25 TB CDN traffic across unlimited websites. Rules [1]

Unlimited Yearly2026-10-21 ↗

—

Annual price not verified

Annual Unlimited monthly credits, unlimited websites, 100 AI credits/month, 500 GB CDN/month; card displays USD 8.33/month equivalent (2 Months Free).

Card displays only the USD 8.33/month equivalent ("Saving $31.98 / year") without printing the annual invoice total.

Unlimited AI Yearly2026-10-21 ↗

—

Annual price not verified

Annual Unlimited compression and AI credits (including AI background removal and upscaling), 500 GB CDN/month; card displays USD 13.33/month equivalent.

Card displays only the USD 13.33/month equivalent ("Saving $31.98 / year") without printing the annual invoice total.

7 plan / billing-period records, all listed; — means that period is not recorded.

[1] Credits never expire

The online web compressor is free without login for files ≤10 MB (login removes the 10 MB limit; free plan includes 100 credits/month). The pricing page lists four non-expiring one-time credit packs (30K at USD 19.99, 50K at USD 29.99, 100K at USD 49.99, and 250K at USD 99.00). The Unlimited Yearly cards display only monthly equivalents (USD 8.33/month and USD 13.33/month, "Saving $31.98 / year") without printing the annual invoice total on the card, so the annual totals are kept unverified.

Verification has gaps; unknown prices and quotas are not inferred.

Cancellation, sources & verification record

One-time credit packs never expire; subscriptions can be cancelled anytime in the account dashboard under official Terms.

ShortPixel official pricing page (annual plans and one-time credit packs) ↗ · 2026-10-21 Capture 1 ↗ · Capture 2 ↗

Allowance & disclosure on test date

Up to 50 files per batch and 10 MB per file without login; free access to Lossy, Glossy, and Lossless modes

Discloses 'maximum 10Mb. Login to remove the restriction.' upfront below the dropzone

Evaluation basis & full scores · Overall 86/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 90/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	32 / 35	Clearly states right below the dropzone: 'Drop up to 50 files here to optimize. Compress JPG, GIF and PNG online. The files should have maximum 10Mb. Login to remove the restriction.' (01_landing.png).	Evidence A →
Interaction restraint	26 / 30	Clean workspace with zero third-party ad banners, offering Lossy / Glossy / Lossless mode toggles and direct one-click PNG download from the thumbnail card (02_workspace.png, 03_download.png).	Evidence A →
Background & reputation	18 / 20	Operated by ShortPixel (ID Scout SRL, founded in 2014), one of the most widely installed image optimization providers in the WordPress ecosystem.	Evidence A →
Engineering & privacy	14 / 15	Processes images via ShortPixel's GDPR-compliant European cloud cluster without requiring personal details for guests.	Evidence A →

Capability · 84.3/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	54.3 / 65	Reduces file size by 67.54% (3.08×) with 34.72 dB PSNR and 0.9954 SSIM, balancing strong compression with clean visual fidelity (54.3/65)	Evidence A →
Deliverable specifications	19 / 20	Preserves full 2048×2048 resolution and native PNG format while offering free Lossy/Glossy/Lossless mode switching (19.0/20)	Evidence A →
Processing speed	11 / 15	Cloud SmartCompress processing takes ~9.8s (~12.2s end-to-end) (11.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

aconvert.com

aconvert.com · Image compression

86/100

Seven-aspect task score

100% free with no login, reducing the 4.14 MB anchor by 56.5% to 1.80 MB at PSNR 36.1 dB with full-resolution unwatermarked output.

Tested export 2048 × 2048 · PNG

Historical test · 2026-11-01
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 56.5% · Output size 1800.1 KB

Detailed facts & historical record

Measured fixture results

File reduction: 56.5% · Output size: 1800.1 KB

Fixture findings

Over 50% size reduction while preserving 2048px resolution and transparency; solid quality and easy to use.

Original historical observation

Aconvert processes compression on cloud servers, reducing the 4.14 MB anchor by 56.5% to 1.80 MB under default Lossy 80 while maintaining SSIM 0.9966 and preserving micro-textures.

Suitable uses · historical assessment

Users and webmasters needing fast free image compression while preserving transparency and 2048px original resolution

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048 x 2048 (Full-resolution unwatermarked PNG)
Watermark observation: No watermark
Batch & API: Supports up to 10 files concurrent upload with multi-format conversion
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 14.7s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 11.2s · End-to-end reference: 14.7s
Date & fixture: 2026-11-01 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: All platform features accessible directly without registration or login
Manual adjustment: Not verified
Interaction observations: Not verified

Evidence & scope →

Background & reputation

Aconvert Project (PDFConvertOnline.com) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Aconvert Project (PDFConvertOnline.com)
Recorded origin: United States
Domain history record: Development team active since 2000
Background & reputation assessment: Not verified
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Claims deletion within 2 hours; deletion not independently verified

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Google AdSense · Google Analytics
Engineering & privacy assessment: Not verified
Retention statement: Claims deletion within 2 hours; deletion not independently verified

Evidence & scope →

Pricing & rules

Aconvert 100% free file conversion and compression service · 2026-11-01

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-11-01 ↗

Free

Free 100% free without login, 40MB per file, up to 10 files per batch

Full access to multi-format conversion and compression across documents, media, eBooks, and archives；40MB per-file limit, 10 files per batch, display ads present；Permanently free, no renewal；Perpetual access

1 plan / billing-period records, all listed; — means that period is not recorded.

All conversion and compression features are 100% free with ad and voluntary donation support; 40MB per-file limit (up to 10 files per batch) with zero paid plans or paywalls.

Cancellation, sources & verification record

Cancellation and refund terms unverified

Aconvert Official Homepage ↗ · 2026-11-01 Capture 1 ↗

Aconvert About and Free Model ↗ · 2026-11-01 Capture 1 ↗

Allowance & disclosure on test date

Completely free, 40MB per file limit, up to 10 files per batch

Compression parameters and instructions clearly disclosed on page

Evaluation basis & full scores · Overall 85.7/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 88.5/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	34 / 35	Explanation unavailable	Evidence A →
Interaction restraint	26 / 30	Explanation unavailable	Evidence A →
Background & reputation	15 / 20	Explanation unavailable	Evidence A →
Engineering & privacy	13.5 / 15	Explanation unavailable	Evidence A →

Capability · 84.5/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	56 / 65	Size Reduction: -56.5% (4137.9 KB → 1800.1 KB, 2.3× ratio) · PSNR: 36.1 dB · SSIM: 0.9966	Evidence A →
Deliverable specifications	20 / 20	Clean unwatermarked export (8/8); Export spec: 2048 x 2048 (Full-resolution unwatermarked PNG)	Evidence A →
Processing speed	8.5 / 15	Network-observed server wait: 11.2s (API mode: cloud_server; network upload 3.5s / end-to-end 14.7s shown for reference only, never penalized)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

ResizePixel

resizepixel.com · Image compression

85/100

Seven-aspect task score

Free login-free target-size compression preserves quality and offers deletion; extension ads on the download page can be confused with the real button.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 49.63% · Output size 2084.2 KB

Detailed facts & historical record

Measured fixture results

File reduction: 49.63% · Output size: 2084.2 KB

Fixture findings

Reduced this fixture by about 50% with detail retained; avoid the sidebar ad resembling a download button.

Original historical observation

ResizePixel delivers remarkable quality in Auto (keep the quality) mode: shrinking our 4,137.9 KB PNG by 49.63% to 2,084.2 KB in 7.6s while maintaining a near-lossless 43.94 dB PSNR and 0.9994 SSIM (02_workspace.png). Users just need to ignore the green 'DOWNLOAD EXTENSION' ad on the left and click the real 'Go to Download / Download Image' button at the bottom right (03_download.png).

Suitable uses · historical assessment

Users who demand near-lossless visual quality (43.94 dB PSNR) or need to shrink an image to an exact KB ceiling for government/exam portals

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 full-resolution PNG free direct export (supports exact target KB/MB compression)
Watermark observation: Watermark-free
Batch & API: Single-image precision workflow (no multi-file batch zip)
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 7.6s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 5.4s · End-to-end reference: 7.6s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No registration or login required (no account system)
Manual adjustment: Not verified
Interaction observations: Both the editor and download screen display a deceptive green 'DOWNLOAD EXTENSION — 2 Easy Steps: 1. Click Download 2. Add Trusted Spot Extension' ad banner on the left sidebar (02_workspace.png, 03_download.png), whereas the real green 'Go to Download / Download Image' button sits in the bottom-right corner.

Evidence & scope →

Background & reputation

ResizePixel · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: ResizePixel
Recorded origin: Ukraine
Domain history record: 2019–Present (dedicated lightweight online image editor)
Background & reputation assessment: Operated by an independent Ukrainian web utility team focused on lightweight browser image tools.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Claims deletion within 30 minutes; deletion not independently verified

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: Download page explicitly states 'The download will be valid for 30 minutes' and provides a red '❌ Delete Now' button for immediate manual server deletion (03_download.png).
Retention statement: Claims deletion within 30 minutes; deletion not independently verified

Evidence & scope →

Pricing & rules

ResizePixel online image compressor and editor web tool · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

ResizePixel Free Web2026-10-21 ↗

Free

Free Free without login for JPG/PNG/WEBP/GIF; supports auto compression and target KB/MB compression with unwatermarked export.

1 plan / billing-period records, all listed; — means that period is not recorded.

The official tool page provides free, no-login online compression for JPG, PNG, WEBP, and GIF images (with auto optimization or target KB/MB compression), supported by display ads without a paywall.

Cancellation, sources & verification record

Ad-supported free tool with no accounts or subscription charges.

ResizePixel official online image compressor page ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

100% free with both Auto high-fidelity compression and exact Target KB/MB compression

100% free throughout the entire workflow

Evaluation basis & full scores · Overall 85.1/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 78/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	32 / 35	100% free with zero paywalls or login gates, offering both 'Auto (keep the quality)' and 'Compress file to X KB/MB' modes (01_landing.png, 02_workspace.png).	Evidence A →
Interaction restraint	17 / 30	Both the editor and download screen display a deceptive green 'DOWNLOAD EXTENSION — 2 Easy Steps: 1. Click Download 2. Add Trusted Spot Extension' ad banner on the left sidebar (02_workspace.png, 03_download.png), whereas the real green 'Go to Download / Download Image' button sits in the bottom-right corner.	Evidence A →
Background & reputation	16 / 20	Operated by an independent Ukrainian web utility team focused on lightweight browser image tools.	Evidence A →
Engineering & privacy	13 / 15	Download page explicitly states 'The download will be valid for 30 minutes' and provides a red '❌ Delete Now' button for immediate manual server deletion (03_download.png).	Evidence A →

Capability · 88.2/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	57.2 / 65	Cuts PNG file size nearly in half (-49.63%, 1.99×) while preserving an extraordinary 43.94 dB PSNR and 0.9994 SSIM (57.2/65)	Evidence A →
Deliverable specifications	19 / 20	Preserves full 2048×2048 resolution and native PNG format while supporting exact target-KB compression (19.0/20)	Evidence A →
Processing speed	12 / 15	End-to-end processing takes 7.6s (~5.4s server compression) (12.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

FreeConvert

freeconvert.com · Image compression

84/100

Seven-aspect task score

Login-free access accepts large files and offers deletion while retaining full-size PNG; limited free compute and dense search ads are the trade-offs.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 47.5% · Output size 2172.4 KB

Detailed facts & historical record

Measured fixture results

File reduction: 47.5% · Output size: 2172.4 KB

Fixture findings

Reduced this fixture by about 48% and accepts large inputs; allow for cloud waiting and ads.

Original historical observation

FreeConvert's standout strength is its massive 1 GB free file-size limit, shrinking our 4.14 MB anchor PNG to 2.17 MB (-47.50%, PSNR=38.53 dB) without login; drawbacks include slower cloud queue turnaround (~12s) and dense contextual search ads (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Users who need to compress oversized PNG/TIFF/JPEG images exceeding the 5 MB / 50 MB limits of other tools without logging in

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (no-login native-resolution watermark-free PNG, up to 1 GB per file)
Watermark observation: Watermark-free
Batch & API: Supports batch uploads, Google Drive / Dropbox integration, and developer REST API
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 12s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 8.5s · End-to-end reference: 12s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required; optional Pro subscription login
Manual adjustment: Not verified
Interaction observations: No forced sign-up modals block the download, but the page is heavily populated with Media.net / Yahoo! Search contextual ad blocks disguised as action buttons (e.g., 'Compress JPEG to 200 KB', see 01_landing.png, 03_download.png).

Evidence & scope →

Background & reputation

TRMedia Inc. (FreeConvert.com) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: TRMedia Inc. (FreeConvert.com)
Recorded origin: Canada
Domain history record: 2018–Present (major global cloud file conversion platform)
Background & reputation assessment: Operated by Canada-based TRMedia Inc. with ISO/IEC 27001 information security certification and tens of millions of monthly visits.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Claims deletion within 8 hours; deletion not independently verified

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: 256-bit SSL encrypted upload with an explicit notice on the results screen: 'Converted files are automatically deleted after 8 hours to protect your privacy' plus a manual delete button (02_workspace.png).
Retention statement: Claims deletion within 8 hours; deletion not independently verified

Evidence & scope →

Pricing & rules

FreeConvert USD web subscriptions, free allowance and volume-tiered options · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-10-20 ↗

Free

Free 20 conversion minutes/day; up to 5 conversion minutes/file; 1 GB web file limit.

Basic2026-10-20 ↗

USD 12.99/month

—

Monthly 1,500 conversion minutes/month; 1.5 GB files; up to 100 concurrent conversions; shared web/API allowance.

Basic (Annual)2026-10-20 ↗

—

USD 129.9/year

Annual Billed annually at USD 129.90/year (USD 10.83/month equivalent, 2 months free); 1,500 conversion minutes/month, 1.5 GB max file size, shared web/API allowance.

Billed annually at USD 129.90/year; cancel anytime

Standard2026-10-20 ↗

USD 24.99/month

—

Monthly 2,000 conversion minutes/month; 2 GB files; up to 100 concurrent conversions; shared web/API allowance.

Standard (Annual)2026-10-20 ↗

—

USD 249.9/year

Annual Billed annually at USD 249.90/year (USD 20.82/month equivalent, 2 months free); 2,000 conversion minutes/month, 2 GB max file size, shared web/API allowance.

Billed annually at USD 249.90/year; cancel anytime

Pro2026-10-20 ↗

USD 29.99/month

—

Monthly 4,000 conversion minutes/month; 5 GB files; up to 100 concurrent conversions; shared web/API allowance.

Pro (Annual)2026-10-20 ↗

—

USD 299.9/year

Annual Billed annually at USD 299.90/year (USD 24.99/month equivalent, 2 months free); 4,000 conversion minutes/month, 5 GB max file size, GPU/CPU encoding, shared web/API allowance.

Billed annually at USD 299.90/year; cancel anytime

Scale (Volume-tiered)2026-10-20 ↗

Contact sales

Quoted

Quoted Volume-tiered pricing starting at 45 units (1,125 conversion minutes/month from USD 27.90/month or USD 279.00/year, scaling up to 1M conversion minutes/month and 20 GB files).

Prepaid top-up (One-time Credit starting tier)2026-10-20 ↗

USD 49.95 · one-time payment

Usage / one-time

Usage / one-time Minimum tier of 45 units (45×25 = 1,125 conversion minutes at USD 1.11/unit = USD 49.95 total, 5 GB max file size); higher volumes scale down to USD 0.33/unit, expiring 30 days after purchase.

9 plan / billing-period records, all listed; — means that period is not recorded.

Monthly plans (USD 12.99 / 24.99 / 29.99) and annual billed totals (Basic USD 129.90/year, Standard USD 249.90/year, Pro USD 299.90/year — 2 months free, displayed on cards as USD 10.83 / 20.82 / 24.99 monthly equivalents) are verified from the official pricing page and its SSR payload. Scale and One-time Credit use volume tiers starting at 45 units (1,125 conversion minutes; One-time Credit starts at USD 49.95 for 30 days). Conversion minutes measure processing duration, not file counts.

Verification has gaps; unknown prices and quotas are not inferred.

Cancellation, sources & verification record

Subscriptions can be cancelled anytime to stop future renewals and advertise a 100% Money Back Guarantee; one-time credits expire after 30 days without auto-renewal.

Official feature and pricing page ↗ · 2026-10-20 Capture 1 ↗

Official pricing page Yearly toggle and SSR Nuxt billing payload verification ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

Free tier supports up to 1 GB per file, capped at ~20–25 cloud Conversion Minutes per day

Discloses 'Max file size 1GB. Sign Up for more' directly below the upload button

Evaluation basis & full scores · Overall 83.9/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 82.5/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	30 / 35	Clearly states 'Max file size 1GB. Sign Up for more' on the hero dropzone (01_landing.png); uploading the 4.14 MB anchor image requires no login to compress and directly download the full PNG (02_workspace.png, 03_download.png), subject to a ~20 conversion-minutes/day free cloud quota.	Evidence A →
Interaction restraint	21 / 30	No forced sign-up modals block the download, but the page is heavily populated with Media.net / Yahoo! Search contextual ad blocks disguised as action buttons (e.g., 'Compress JPEG to 200 KB', see 01_landing.png, 03_download.png).	Evidence A →
Background & reputation	18 / 20	Operated by Canada-based TRMedia Inc. with ISO/IEC 27001 information security certification and tens of millions of monthly visits.	Evidence A →
Engineering & privacy	13.5 / 15	256-bit SSL encrypted upload with an explicit notice on the results screen: 'Converted files are automatically deleted after 8 hours to protect your privacy' plus a manual delete button (02_workspace.png).	Evidence A →

Capability · 84.5/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	55.5 / 65	Default PNG compression shrinks 4,137.9 KB to 2,172.4 KB (-47.50%, 1.90× ratio) at PSNR = 38.53 dB and SSIM = 0.9981, while offering advanced gear settings for target percentage tuning (55.5/65)	Evidence A →
Deliverable specifications	19.5 / 20	Exports a watermark-free 2048×2048 native PNG without login and uniquely supports up to 1 GB per file on the free tier—far exceeding the 5–50 MB cap of competitors (19.5/20)	Evidence A →
Processing speed	9.5 / 15	Three-stage cloud queue upload, worker compression, and result polling takes ~12.0s end-to-end (~8.5s server processing) (9.5/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

birme.net

birme.net · Image compression

83/100

Seven-aspect task score

BIRME is a free, no-login client-side image resizer and compressor that completes 88.4% volume reduction in 342ms using Pica high-quality interpolation to 512x512 while retaining native PNG RGBA transparency, ideal for e-commerce and web batch optimization; however, keeping original dimensions while preserving PNG format in browser Canvas triggers file expansion due to uncompressed Canvas re-encoding.

Tested export 512 × 512 · PNG

Historical test · 2026-11-01
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (512 × 512 · PNG) ↗ Entry & rules ↗Result screen ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 88.37% · Output size 481.4 KB

Detailed facts & historical record

Measured fixture results

File reduction: 88.37% · Output size: 481.4 KB

Fixture findings

Under the 2048px standard anchor, BIRME's default preset exports a 512x512 native PNG file achieving 27.59 dB PSNR, 0.9755 SSIM, and 88.37% size reduction with pure client-side Canvas/Pica offline processing in 342ms.

Original historical observation

BIRME executes purely in local browser Canvas with Pica interpolation, reducing 4.14 MB to 481.4 KB (-88.4%) while preserving PNG format and transparency in 342ms.

Suitable uses · historical assessment

E-commerce and web operations requiring fast batch resizing and compression while preserving PNG transparency

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

512 × 512 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 512 × 512 · PNG · No watermark in test
Historical specification note · not an official maximum: 512 × 512 (Default Pica high-quality scaling, preserving native PNG)
Watermark observation: No watermark
Batch & API: Supports arbitrary batch processing limited only by local device memory
Recorded free-tier dimensions: 512 × 512
Attached file dimensions: 512 × 512 · PNG

Evidence & scope →

Speed & reliability

About 0.34s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 0.34s · End-to-end reference: 0.34s
Date & fixture: 2026-11-01 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: All features available directly without registration or login
Manual adjustment: Not verified
Interaction observations: Not verified

Evidence & scope →

Background & reputation

BIRME Project · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: BIRME Project
Recorded origin: United Kingdom
Domain history record: Founded in 2013
Background & reputation assessment: Not verified
External reputation record: Continuously operating for 13 years since 2013, renowned for pure client-side privacy.

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: Google Analytics
Engineering & privacy assessment: Not verified
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

BIRME 100% free client-side batch image processing and compression · 2026-11-01

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-11-01 ↗

Free

Free Completely free without login; unlimited batch image processing constrained only by client memory

Smart crop, format conversion (JPG/PNG/WebP/AVIF), quality compression, watermark, AI background removal and upscaling；Pure client-side execution; very large batches may consume significant browser memory；Permanently free, no renewal；Perpetual access

1 plan / billing-period records, all listed; — means that period is not recorded.

All batch resizing, compression, AI background removal, and upscaling are 100% free with voluntary donation support and zero paid plans.

Cancellation, sources & verification record

Cancellation and refund terms unverified

BIRME Official Studio ↗ · 2026-11-01 Capture 1 ↗

Allowance & disclosure on test date

Completely free, no quota limits, pure client-side batch processing

Page transparently outlines all resizing and compression parameters

Evaluation basis & full scores · Overall 83.4/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 96/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	35 / 35	Explanation unavailable	Evidence A →
Interaction restraint	28 / 30	Explanation unavailable	Evidence A →
Background & reputation	18 / 20	Explanation unavailable	Evidence A →
Engineering & privacy	15 / 15	Explanation unavailable	Evidence A →

Capability · 78/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	48 / 65	Size Reduction: -88.37% (4137.9 KB → 481.4 KB, 8.6× ratio) · PSNR: 27.59 dB · SSIM: 0.9755	Evidence A →
Deliverable specifications	15 / 20	Clean unwatermarked export (8/8); Export spec: 512 × 512 (Default Pica high-quality scaling, preserving native PNG)	Evidence A →
Processing speed	15 / 15	Network-observed server wait: 0.34s (API mode: client_side; network upload 0s / end-to-end 0.34s shown for reference only, never penalized)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

CompressNow

compressnow.com · Image compression

83/100

Seven-aspect task score

Free login-free on-device processing discloses format conversion upfront; size reduction is substantial, but PNG export is unavailable and transparency needs care.

Tested export PNG · Output attached

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (PNG · Output attached) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 85.99% · Output size 579.8 KB

Detailed facts & historical record

Measured fixture results

File reduction: 85.99% · Output size: 579.8 KB

Fixture findings

Local compression reduced this fixture by about 86%; export changes to JPG or WebP, not PNG.

Original historical observation

CompressNow is a fast, 100% client-side compressor: your image never leaves your browser, and in 0.9s it shrinks our 4.24 MB benchmark PNG to 579.8 KB (-85.99%, 7.14×) at 42.34 dB PSNR (02_workspace.png). Note that it only outputs JPG or WebP (disclosed upfront), so users with transparent PNGs should select the WebP toggle.

Suitable uses · historical assessment

Users who want to rapidly shrink bulky PNG screenshots or photos locally in-browser into high-quality JPG or WebP (-86% size) without uploading files to any server

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

PNG · Output attached · No watermark in test

Detailed facts & historical record

Recorded export specifications: PNG · Output attached · No watermark in test
Historical specification note · not an official maximum: 2048×2048 full-resolution free export (outputs as JPG or WebP; does not export native PNG)
Watermark observation: Watermark-free
Batch & API: Supports up to 30 images (≤30 MB each) with one-click DOWNLOAD ZIP
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: Not verified

Evidence & scope →

Speed & reliability

About 0.9s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 0.9s · End-to-end reference: 0.9s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No registration or login required (100% local tool)
Manual adjustment: Not verified
Interaction observations: Clean single-page workspace with a live compression level slider (default 20%) and a single display ad banner, with zero popups or registration walls (02_workspace.png, 03_download.png).

Evidence & scope →

Background & reputation

CompressNow · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: CompressNow
Recorded origin: France / European Independent Developer
Domain history record: 2012–Present (14-year online image compression tool)
Background & reputation assessment: Classic multi-language online image weight reducer operating for over 10 years (currently V6.0).
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: Not verified
Engineering & privacy assessment: 100% local in-browser processing (`blob:https://compressnow.com/...`); FAQ explicitly states 'Compression runs in your browser: your images never leave your device.'
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

Compressnow online in-browser image compressor · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Compressnow Free Web2026-10-21 ↗

Free

Free Free without login; up to 30 MB per image and up to 30 images at a time; individual or ZIP download.

1 plan / billing-period records, all listed; — means that period is not recorded.

The official page and FAQ state that compression runs in the browser (images are not stored), supporting up to 30 MB per image and up to 30 images at a time for JPG/JPEG/PNG/GIF/WebP (output as JPG or WebP), with no paid tiers.

Cancellation, sources & verification record

Completely free web tool with no accounts or subscription charges.

Compressnow official tool page and FAQ ↗ · 2026-10-21 Capture 1 ↗

Allowance & disclosure on test date

100% free, up to 30 MB per image and up to 30 images per batch

Discloses upfront at the top of the page that output format is JPG or WebP ('Transparent areas turn white')

Evaluation basis & full scores · Overall 82.9/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 87/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	31 / 35	100% free for up to 30 MB per image and 30 images at a time; transparently discloses next to the Format toggle: 'Format: JPG \| WebP — Works everywhere. Transparent areas turn white.' (01_landing.png).	Evidence A →
Interaction restraint	24 / 30	Clean single-page workspace with a live compression level slider (default 20%) and a single display ad banner, with zero popups or registration walls (02_workspace.png, 03_download.png).	Evidence A →
Background & reputation	17 / 20	Classic multi-language online image weight reducer operating for over 10 years (currently V6.0).	Evidence A →
Engineering & privacy	15 / 15	100% local in-browser processing (`blob:https://compressnow.com/...`); FAQ explicitly states 'Compression runs in your browser: your images never leave your device.'	Evidence A →

Capability · 81.2/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	52.2 / 65	Shrinks file size by 85.99% (7.14×) at 42.34 dB PSNR and 0.9992 SSIM, though output format is converted to JPG or WebP (52.2/65)	Evidence A →
Deliverable specifications	15 / 20	Preserves full 2048×2048 dimensions and supports 30 MB files, but converts PNG inputs to JPG (or WebP) rather than native `.png` (15.0/20)	Evidence A →
Processing speed	14 / 15	100% local browser Canvas compression with 0 bytes uploaded in ~0.9s (14.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

bulkresizephotos.com

bulkresizephotos.com · Image compression

82/100

Seven-aspect task score

Bulk Resize Photos was benchmarked on 2026-11-01: fully guest-accessible and purely client-side via Canvas/WASM, reducing a 4.14 MB image by 97.7% to 94.9 KB in just 140ms, though default settings silently scale to 50% (1024×1024) and convert to JPEG, dropping alpha transparency.

Tested export JPEG · Output attached

Historical test · 2026-11-01
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

bulkresizephotos.com native output thumbnail

Inspect native image (JPEG · Output attached) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 97.71% · Output size 94.9 KB

Detailed facts & historical record

Measured fixture results

File reduction: 97.71% · Output size: 94.9 KB

Fixture findings

Sample testing confirms: under default settings it heavily compresses file size by 97.7% to 94.9 KB with PSNR of 31.14 dB and SSIM of 0.9893, though deliverable size drops to 1024x1024 without alpha channel, earning an 80.3 overall score.

Original historical observation

Bulk Resize Photos uses client-side Canvas processing; default settings heavily compress the 4.14 MB image by 97.7% to 94.9 KB, converting to JPEG and scaling to 50% in 140ms.

Suitable uses · historical assessment

Users needing ultra-fast, drastic image file size reduction where transparency retention is not required

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

JPEG · Output attached · No watermark in test

Detailed facts & historical record

Recorded export specifications: JPEG · Output attached · No watermark in test
Historical specification note · not an official maximum: 1024×1024 (defaults to 50% scale JPEG, loses alpha transparency)
Watermark observation: No watermark
Batch & API: Supports unlimited batch files locally, constrained only by client memory
Recorded free-tier dimensions: 1024 × 1024
Attached file dimensions: Not verified

Evidence & scope →

Speed & reliability

About 0.14s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 0.14s · End-to-end reference: 0.14s
Date & fixture: 2026-11-01 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: All features available directly without registration or login
Manual adjustment: Not verified
Interaction observations: Not verified

Evidence & scope →

Background & reputation

Wruff GK · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Wruff GK
Recorded origin: Not verified
Domain history record: Not verified
Background & reputation assessment: Not verified
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: Google Analytics · Google AdSense
Engineering & privacy assessment: Not verified
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

Entire client-side batch image resizing and optimization free service · 2026-11-01

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-11-01 ↗

Free

Free Completely free unlimited batch image resizing, compression, and format conversion with zero uploads

Batch resizing by scale, dimensions, file size, along with quality compression and format conversion；Dependent on local device performance; ad-supported；Permanently free, no renewal；Perpetual access

1 plan / billing-period records, all listed; — means that period is not recorded.

100% free with ad sponsorship; zero paid plans, subscriptions, or quota limits.

Cancellation, sources & verification record

Cancellation and refund terms unverified

Bulk Resize Photos Official Homepage ↗ · 2026-11-01 Capture 1 ↗

Allowance & disclosure on test date

Completely free, no quota limits, client-side batch processing

Page transparently displays all resizing and compression parameters

Evaluation basis & full scores · Overall 82.4/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 95/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	35 / 35	Explanation unavailable	Evidence A →
Interaction restraint	28 / 30	Explanation unavailable	Evidence A →
Background & reputation	17 / 20	Explanation unavailable	Evidence A →
Engineering & privacy	15 / 15	Explanation unavailable	Evidence A →

Capability · 77/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	50 / 65	Size Reduction: -97.71% (4137.9 KB → 94.9 KB, 43.62× ratio) · PSNR: 31.14 dB · SSIM: 0.9893	Evidence A →
Deliverable specifications	12 / 20	Watermarked or blocked free export (0/8); Export spec: 1024×1024 (defaults to 50% scale JPEG, loses alpha transparency)	Evidence A →
Processing speed	15 / 15	Network-observed server wait: 0.14s (API mode: client_side; network upload 0s / end-to-end 0.14s shown for reference only, never penalized)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

TinyWow

tinywow.com · Image compression

82/100

Seven-aspect task score

Free login-free access offers many formats but requires verification and cloud upload; default PNG settings preserve quality with only about 10% size reduction.

Tested export 2048 × 2048 (3,744.0 KB PNG, -9.52%) · Historical description; output not attached

Historical test · 2026-10-19
Guest flow · Fixed PNG fixture · Historical page record; output not attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 9.52% · Output size 3744 KB; historical record only

Detailed facts & historical record

Measured fixture results

File reduction: 9.52% · Output size: 3744 KB

Fixture findings

Default PNG preserved quality but reduced this fixture by only about 10%; other export formats are available.

Original historical observation

At its default Quality = 90% setting while keeping PNG format, TinyWow applies conservative quantization that preserves near-lossless pixel fidelity (PSNR 48.20 dB, SSIM 0.9996) with a modest -9.52% byte reduction; switching the output dropdown to .webp or .avif yields much larger savings.

Suitable uses · historical assessment

Users wanting free no-login near-lossless PNG optimization (48.20 dB PSNR) or one-click conversion to WebP/AVIF/JXL

Result & output evidence

No native output obtained; the preview does not establish final export quality.

Open result screenshot ↗

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 (3,744.0 KB PNG, -9.52%) · Historical description; output not attached · Check watermark record

Detailed facts & historical record

Recorded export specifications

2048 × 2048 (3,744.0 KB PNG, -9.52%) · Historical description; output not attached · Check watermark record

No native output is attached; check the evidence for specification and watermark claims.

Historical specification note · not an official maximum

2048×2048 (Original Resolution Preserved)

Watermark observation

Watermark-Free

Batch & API

Supports multi-file upload, live Before/After slider, and format conversion

Recorded free-tier dimensions

Not verified

Attached file dimensions

Not verified

Evidence & scope →

Speed & reliability

About 12s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 8.5s · End-to-end reference: 12s
Date & fixture: 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required (Cloudflare Turnstile check)
Manual adjustment: Not verified
Interaction observations: Provides a built-in Before/After visual comparison slider, an adjustable Quality slider (default 90%), and optional one-click conversion to .webp, .avif, or .jxl.

Evidence & scope →

Background & reputation

Box20 Media LLC (United States) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Box20 Media LLC (United States)
Recorded origin: United States
Domain history record: 2021–Present
Background & reputation assessment: Operated by US-based Box20 Media LLC, a popular multi-category free web utility platform.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Claims deletion within 1 hours; deletion not independently verified

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: States that all uploaded and processed files are automatically deleted from servers 1 hour after processing.
Retention statement: Claims deletion within 1 hours; deletion not independently verified

Evidence & scope →

Pricing & rules

TinyWow current PDF-specific and all-tool subscriptions; USD · 2026-10-20

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Web free2026-10-20 ↗

Free

Free No registration; free PDF tools are available, but exact daily allowances are not listed.

PDF Unlimited2026-10-20 ↗

USD 9/month

USD 72/year

Monthly 45+ PDF tools, unlimited PDF use, no daily limits or ads

Annual 45+ PDF tools, unlimited PDF use, no daily limits or ads

TinyWow Unlimited2026-10-20 ↗

USD 20/month

USD 180/year

Monthly All PDF/image/writing/video/file tools; no ads or captcha

Annual All PDF/image/writing/video/file tools; no ads or captcha

5 plan / billing-period records, all listed; — means that period is not recorded.

Monthly and annual modes confirm annual bills USD 72 / 180. Current PDF Unlimited and all-tool TinyWow Unlimited replace the historical Supporter description. Other single-category subscriptions do not include PDF. Numeric free limits and cancellation terms remain unspecified.

Verification has gaps; unknown prices and quotas are not inferred.

Cancellation, sources & verification record

Cancellation and refund terms follow official checkout and help policies.

Official feature and pricing page ↗ · 2026-10-20 Capture 1 ↗

Allowance & disclosure on test date

Free unlimited usage without login; optional paid supporter plan removes ads and CAPTCHAs

Clearly displays exact before/after file sizes (4.04 MB -> 3.66 MB, -9%) on the result screen

Evaluation basis & full scores · Overall 82.2/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 86/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	31 / 35	Completely free with no account registration required (01_landing.png); after a single Cloudflare Turnstile check, it compresses our 4.04 MiB PNG and provides an immediate direct download (02_result.png, 03_download.png).	Evidence A →
Interaction restraint	23.5 / 30	Provides a built-in Before/After visual comparison slider, an adjustable Quality slider (default 90%), and optional one-click conversion to .webp, .avif, or .jxl.	Evidence A →
Background & reputation	18 / 20	Operated by US-based Box20 Media LLC, a popular multi-category free web utility platform.	Evidence A →
Engineering & privacy	13.5 / 15	States that all uploaded and processed files are automatically deleted from servers 1 hour after processing.	Evidence A →

Capability · 80.5/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	50.5 / 65	Size Reduction: -9.52% (4,137.9 KB → 3,744.0 KB, 1.11× ratio) · PSNR: 48.20 dB · SSIM: 0.9996 (49.2/65)	Evidence B →
Deliverable specifications	19.5 / 20	Preserves the full 2048×2048 resolution without watermarks and offers optional .webp/.avif/.jxl export (20.0/20)	Evidence B →
Processing speed	10.5 / 15	Completes cloud PNG compression in ~5.8s after Turnstile verification (12.8/15)	Evidence B →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

11zon

11zon.com · Image compression

81/100

Seven-aspect task score

Free login-free compression runs quickly on-device, but default settings produce banding and several extension ads resemble download buttons.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 79.65% · Output size 842 KB

Detailed facts & historical record

Measured fixture results

File reduction: 79.65% · Output size: 842 KB

Fixture findings

Strong size reduction suits upload limits; gradients show banding and download ads need care.

Original historical observation

11zon offers a very handy dual-tab interface ('Slider' by % and 'Size' by target KB), shrinking our 4.14 MB PNG down to 842 KB (-79.65%) in 1.8s at its default 60% level; however, the aggressive palette cut causes visible gradient banding (PSNR=32.83 dB) and users must dodge 3 green 'DOWNLOAD EXTENSION' fake ad buttons (02_workspace.png).

Suitable uses · historical assessment

Users facing strict government or academic portal upload limits (e.g., forcing a large PNG under 1 MB or an exact KB target) who can tolerate mild background gradient banding

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (no-login native-resolution watermark-free PNG, supports % Slider and target-KB modes)
Watermark observation: Watermark-free
Batch & API: Supports batch drag-and-drop and one-click Download ZIP; no public API
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 1.8s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Recorded local processing time: 1.8s · End-to-end reference: 1.8s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required; optional account sign-in in the top header
Manual adjustment: Not verified
Interaction observations: While the tool itself has no paywall, the workspace is surrounded by 3 green 'DOWNLOAD EXTENSION (2 Easy Steps: 1. Click "Download" 2. Add Trusted Spot Extension)' fake download ad buttons at the top, right sidebar, and sticky bottom bar (02_workspace.png).

Evidence & scope →

Background & reputation

11zon.com · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: 11zon.com
Recorded origin: India / Global multilingual utility network
Domain history record: 2021–Present
Background & reputation assessment: Fast-growing multilingual utility network covering PDF and image processing sub-sites.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

On-device processing；This flow runs locally; post-close deletion not independently verified

Detailed facts & historical record

Processing location: On-device processing
Third-party tracking record: Not verified
Engineering & privacy assessment: Underlying Blob URL inspection confirms that 11zon compresses images locally inside browser memory (~1.8s) without uploading original photos to a remote server.
Retention statement: This flow runs locally; post-close deletion not independently verified

Evidence & scope →

Pricing & rules

11zon web PDF-to-Word free tool · 2026-10-20

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Web free2026-10-20 ↗

Free

Free Free conversion; the page says multiple PDFs can be converted together. Numeric page and file-size limits are not listed.

1 plan / billing-period records, all listed; — means that period is not recorded.

The official tool page states free, unlimited conversion. Numeric size and page limits are not published; the claim is not a guarantee for arbitrary files.

Cancellation, sources & verification record

Cancellation and refund terms follow official checkout and help policies.

Official feature and pricing page ↗ · 2026-10-20 Capture 1 ↗

Allowance & disclosure on test date

Free batch compression with both percentage Slider and target-KB Size tabs and no daily cap

Automatically compresses at the default 60% level upon upload and displays 'New size: 842 KB'

Evaluation basis & full scores · Overall 81.4/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 80/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	31.5 / 35	100% free without login: uploading the 4.14 MB (2048×2048) anchor image immediately unlocks individual Download and batch Download ZIP buttons with zero paywalls or watermarks (01_landing.png, 02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	17.5 / 30	While the tool itself has no paywall, the workspace is surrounded by 3 green 'DOWNLOAD EXTENSION (2 Easy Steps: 1. Click "Download" 2. Add Trusted Spot Extension)' fake download ad buttons at the top, right sidebar, and sticky bottom bar (02_workspace.png).	Evidence A →
Background & reputation	16.5 / 20	Fast-growing multilingual utility network covering PDF and image processing sub-sites.	Evidence A →
Engineering & privacy	14.5 / 15	Underlying Blob URL inspection confirms that 11zon compresses images locally inside browser memory (~1.8s) without uploading original photos to a remote server.	Evidence A →

Capability · 82/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	48 / 65	Defaults its 'Compression Level' slider to an aggressive 60%, slashing the 4,137.9 KB PNG down to 842.0 KB (-79.65%, 4.91× ratio) and offering a 'Size' tab for target-KB compression; however, aggressive palette reduction lowers PSNR to 32.83 dB (SSIM = 0.9928) with visible contour banding across the background wall gradient (48.0/65)	Evidence A →
Deliverable specifications	19.5 / 20	Preserves 2048×2048 native resolution and PNG format without login or watermarks, supporting both single-file and ZIP exports (19.5/20)	Evidence A →
Processing speed	14.5 / 15	Local in-browser quantization completes in ~1.8s after file selection (14.5/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

Img2Go

img2go.com · Image compression

80/100

Seven-aspect task score

Login-free access offers compression controls and deletion; the default preset reduces size substantially but causes gradient banding, alongside banner ads.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-18
Guest flow · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 78.49% · Output size 890.1 KB

Detailed facts & historical record

Measured fixture results

File reduction: 78.49% · Output size: 890.1 KB

Fixture findings

Default settings reduced this fixture by about 78% with some quality loss; lower compression is available.

Original historical observation

IMG2GO offers a comprehensive 7-mode compression settings panel (02_workspace.png). Under the default 'Recommended compression' preset, it aggressively shrinks our 4,137.9 KB PNG by 78.49% to 890.1 KB (03_download.png) at 31.68 dB PSNR; quality-focused users can select 'Less compression' or 'Lossless compression' before clicking Compress Now.

Suitable uses · historical assessment

Users who want granular preset control (Lossless / Less / Recommended / Extreme / Target KB) and GDPR-compliant instant task deletion

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 full-resolution PNG free direct export
Watermark observation: Watermark-free
Batch & API: Supports multi-file upload and ZIP archive download
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 8.3s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 5.8s · End-to-end reference: 8.3s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

No login in this run

Detailed facts & historical record

Account requirements: No login in this test
Sign-in methods: No login required (paid Credits available for heavy batch users)
Manual adjustment: Not verified
Interaction observations: Displays house ads for sister tools (Audio2Edit / OCR2Edit) and GoDaddy banners at the bottom, while keeping the blue 'Download' button clean and unobstructed (03_download.png).

Evidence & scope →

Background & reputation

QaamGo Web GmbH (IMG2GO / PDF2Go) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: QaamGo Web GmbH (IMG2GO / PDF2Go)
Recorded origin: Radolfzell, Germany
Domain history record: 2016–Present (10-year European online conversion suite)
Background & reputation assessment: Operated by Germany-based QaamGo Web GmbH (parent company of PDF2Go and Online-Convert).
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Claims deletion within 24 hours; deletion not independently verified

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: Provides a prominent red 'Delete Task' button on the result screen for immediate manual server erasure (03_download.png).
Retention statement: Claims deletion within 24 hours; deletion not independently verified

Evidence & scope →

Pricing & rules

Website free, monthly, annual and education plans; USD, Business billed per person · 2026-10-20

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-10-20 ↗

Free

Free Limited processing; no universal free-credit count published

Starter2026-10-20 ↗

USD 8/month

USD 77/year

Monthly Baseline 1× AI usage; batch processing

Annual Baseline 1× AI usage; 64GB files and batch processing

Pro2026-10-20 ↗

USD 29/month

USD 278/year

Monthly 5× Starter AI usage

Annual 5× Starter AI usage

Business2026-10-20 ↗

USD 89/month

USD 854/year

Monthly Per-user billing; 20× Starter AI usage

Annual Per-user billing; 20× Starter AI usage

Education program2026-10-20 ↗

Free

Free Paid apps free after student/teacher eligibility verification; non-commercial educational use only

8 plan / billing-period records, all listed; — means that period is not recorded.

Actual annual amounts are $77/$278/$854. Absolute removal quotas and per-image credit usage are unpublished; 1×/5×/20× cannot be converted into image counts.

Cancellation, sources & verification record

Page advertises a 14-day money-back guarantee and cancellation anytime; eligibility is subject to terms.

Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗

Allowance & disclosure on test date

Free no-login access to Less / Recommended / Extreme / Lossless presets and Target File Size mode

Displays all compression presets clearly in the Settings panel after file selection

Evaluation basis & full scores · Overall 80.3/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 84/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	29 / 35	Provides 4 clear presets upon upload (Less compression / Recommended compression / Extreme compression / Lossless compression) plus Target File Size and Percentage modes (02_workspace.png) with free no-login download.	Evidence A →
Interaction restraint	23 / 30	Displays house ads for sister tools (Audio2Edit / OCR2Edit) and GoDaddy banners at the bottom, while keeping the blue 'Download' button clean and unobstructed (03_download.png).	Evidence A →
Background & reputation	18 / 20	Operated by Germany-based QaamGo Web GmbH (parent company of PDF2Go and Online-Convert).	Evidence A →
Engineering & privacy	14 / 15	Provides a prominent red 'Delete Task' button on the result screen for immediate manual server erasure (03_download.png).	Evidence A →

Capability · 78.7/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	48.7 / 65	Default 'Recommended' preset aggressively reduces size by 78.49% (4.65×) to 890.1 KB, lowering PSNR to 31.68 dB (SSIM = 0.9906) with slight gradient banding (48.7/65)	Evidence A →
Deliverable specifications	18.5 / 20	Preserves full 2048×2048 resolution and native PNG format while offering 7 compression presets (18.5/20)	Evidence A →
Processing speed	11.5 / 15	Cloud queue and compression take ~5.8s (~8.3s end-to-end) (11.5/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

PicWish

picwish.com · Image compression

73/100

Seven-aspect task score

Signed-in free accounts can download full-resolution compressed images with fast processing and substantial size reduction, but guest downloads hit a login modal and PNG inputs are converted to JPEG.

Tested export JPEG · Output attached

Historical test · 2026-10-19
Account / tier unconfirmed · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (JPEG · Output attached) ↗ Entry & rules ↗Result screen ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 65.85% · Output size 1413.3 KB

Detailed facts & historical record

Measured fixture results

File reduction: 65.85% · Output size: 1413.3 KB

Fixture findings

Retained 2000x2000 dimensions with ~91% file size reduction; the PNG input was converted to lossy JPEG.

Original historical observation

Compressed canonical PNG to 1,447,201-byte 2048×2048 JPEG (-65.85%, PSNR=47.03 dB, SSIM=0.9997) after free Google sign-in.

Suitable uses · historical assessment

Not verified

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

JPEG · Output attached · Check watermark record

Detailed facts & historical record

Recorded export specifications: JPEG · Output attached · Check watermark record
Historical specification note · not an official maximum: Not verified
Watermark observation: Not verified
Batch & API: Not verified
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: Not verified

Evidence & scope →

Speed & reliability

About 3.54s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 1.43s · End-to-end reference: 3.54s
Date & fixture: 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

Account requirement unconfirmed

Detailed facts & historical record

Account requirements: Not verified
Sign-in methods: Google or email login required when clicking Download Image
Manual adjustment: Not verified
Interaction observations: Uses a post-processing login wall at the download step and devotes half the result panel to promoting the desktop app.

Evidence & scope →

Background & reputation

AI Image Tool Matrix (Wangxu Tech / Apowersoft) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: AI Image Tool Matrix (Wangxu Tech / Apowersoft)
Recorded origin: Not verified
Domain history record: Not verified
Background & reputation assessment: Operated by Wangxu Technology (HK) Co., Limited (Apowersoft).
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: HTTPS upload to Alibaba Cloud OSS plus gw.aoscdn.com async task queue; requires account login to retrieve the compressed file.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

Web free, weekly/monthly/annual subscriptions and expanded packs; excludes API · 2026-10-20

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free2026-10-20 ↗

Free

Free Limited non-HD downloads; no included credits or batch processing

Pro2026-10-20 ↗

USD 5.99/week

Other period

Other period 50 credits/week; 50 core-feature HD downloads/day Rules [1]

Pro2026-10-20 ↗

USD 9.99/month

USD 59.99/year

Monthly 350 credits/month; 50 core-feature HD downloads/day Rules [1]

Annual 350 credits/month; 50 core-feature HD downloads/day Rules [1]

Max2026-10-20 ↗

USD 26.99/month

USD 263.99/year

Monthly 2,000 credits/month; 15,000 HD downloads/month Rules [1]

Annual 2,000 credits/month; 15,000 HD downloads/month Rules [1]

300 credits2026-10-20 ↗

USD 12.99 · one-time payment

Usage / one-time

Usage / one-time 300 credits; 1 per removal; not for API Rules [2]

1,000 credits2026-10-20 ↗

USD 33.99 · one-time payment

Usage / one-time

Usage / one-time 1,000 credits; 1 per removal; not for API Rules [2]

5,000 credits2026-10-20 ↗

USD 65.99 · one-time payment

Usage / one-time

Usage / one-time 5,000 credits; 1 per removal; not for API Rules [2]

11,500 credits2026-10-20 ↗

USD 99.95 · one-time payment

Usage / one-time

Usage / one-time 11,500 credits; 1 per removal; not for API Rules [2]

30,000 credits2026-10-20 ↗

USD 269.99 · one-time payment

Usage / one-time

Usage / one-time 30,000 credits; 1 per removal; not for API Rules [2]

80,000 credits2026-10-20 ↗

USD 639.99 · one-time payment

Usage / one-time

Usage / one-time 80,000 credits; 1 per removal; not for API Rules [2]

Custom credits2026-10-20 ↗

Contact sales

Quoted

Quoted Custom high-volume quote

13 plan / billing-period records, all listed; — means that period is not recorded.

[1] Subscription credits do not roll over; downloads and credits are separate allowances

[2] No expiry

Actual annual charges $59.99/$263.99. A 3-day trial is offered; cancel before expiry to avoid charges. Exact daily free count is unspecified. The 11,500-credit pack includes a current 1,500-credit bonus.

Cancellation, sources & verification record

Cancel under My Orders; request refunds through official support, eligibility not separately verified.

Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ · Capture 4 ↗

Allowance & disclosure on test date

Compressed canonical 4,237,170-byte PNG to 1,447,201 bytes; downloaded 2048×2048 JPEG (-65.85%) after free Google sign-in.

Not recorded

Evaluation basis & full scores · Overall 72.7/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 52/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	15 / 35	Landing page headlines "Free Online Image Compressor — Compress images with one click" and lets guests upload and preview the compression ratio (4.04MB to 1.38MB), but clicking Download Image opens a login gate; after free Google sign-in, the 2048×2048 image downloads without payment, while batch mode and custom settings require the desktop app.	Evidence B →
Interaction restraint	12 / 30	Uses a post-processing login wall at the download step and devotes half the result panel to promoting the desktop app.	Evidence B →
Background & reputation	15 / 20	Operated by Wangxu Technology (HK) Co., Limited (Apowersoft).	Evidence B →
Engineering & privacy	10 / 15	HTTPS upload to Alibaba Cloud OSS plus gw.aoscdn.com async task queue; requires account login to retrieve the compressed file.	Evidence B →

Capability · 81.5/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	53 / 65	Compressed the 4,237,170-byte (4,137.9 KB) canonical PNG to a 1,447,201-byte (1,413.3 KB) 2048×2048 JPEG (-65.85%, 2.93x ratio) with PSNR=47.03 dB and SSIM=0.9997 on opaque RGB content, though converting the container format from PNG to JPEG.	Evidence A →
Deliverable specifications	14 / 20	Signed-in free account downloads a full 2048×2048 watermark-free file, but guest download is blocked by a login modal and PNG is transcoded to JPEG.	Evidence A →
Processing speed	14.5 / 15	2026-10-21 single-sample network timing: OSS PUT upload 1.80s, async compression task (r40 to r43) server wait 1.43s, end-to-end 3.54s.	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

Fotor

fotor.com · Image compression

49/100

Seven-aspect task score

Default PNG output grew in this run, and login was demanded only at download; marketing prompts and late gating add friction.

Tested export 2048 × 2048 · PNG

Historical test · 2026-10-18
Signed-in flow; paid tier not standardized · Fixed PNG fixture · Output attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Inspect native image (2048 × 2048 · PNG) ↗ Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction -42.27% · Output size 5886.7 KB

Detailed facts & historical record

Measured fixture results

File reduction: -42.27% · Output size: 5886.7 KB

Fixture findings

Default settings increased this PNG's size; downloading also required login.

Original historical observation

Fotor's Image Compressor exposed two major flaws in real-machine testing: first, its default 'Format: Original / Image Quality: Medium' mode has no PNG palette quantizer, causing our 4.0 MB PNG to balloon to 5.7 MB (`↑ 42.3%` in red on Fotor's own card, 02_workspace.png); second, clicking Download immediately hits a mandatory login wall (03_download.png).

Suitable uses · historical assessment

Only usable for signed-in Fotor users compressing JPEGs (or converting PNGs to JPG/WebP); completely unsuitable for native PNG compression

Result & output evidence

Open native output ↗

Open result screenshot

Full test record →

Evidence & scope →

Delivery capabilities

2048 × 2048 · PNG · No watermark in test

Detailed facts & historical record

Recorded export specifications: 2048 × 2048 · PNG · No watermark in test
Historical specification note · not an official maximum: 2048×2048 (download blocked without login, and default PNG mode inflates file size by +42.3%)
Watermark observation: Watermark-free (requires login)
Batch & API: Batch workspace supports up to 50 images per session
Recorded free-tier dimensions: 2048 × 2048
Attached file dimensions: 2048 × 2048 · PNG

Evidence & scope →

Speed & reliability

About 2.4s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 2.4s · End-to-end reference: 2.4s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

Detailed facts & historical record

Account requirements: Account required in this test
Sign-in methods: Mandatory Google / Facebook / Apple / Email login modal triggered when clicking Download
Manual adjustment: Not verified
Interaction observations: Enforces a classic post-action login gate after the user has already configured and applied settings, accompanied by persistent top promo banners (02_workspace.png, 03_download.png).

Evidence & scope →

Background & reputation

Everimaging Ltd. (Fotor) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Everimaging Ltd. (Fotor)
Recorded origin: Chengdu, China / Global Operations
Domain history record: 2012–Present (14-year photo editing suite)
Background & reputation assessment: Batch compression module within the globally recognized Fotor photo editing suite operated by Everimaging Ltd.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Processing location unconfirmed；Explicit retention period unconfirmed; inspect policy record

Detailed facts & historical record

Processing location: Processing location unconfirmed
Third-party tracking record: Not verified
Engineering & privacy assessment: Re-encodes images in the browser via Canvas Blob generation, but forces personal account sign-in before allowing file export.
Retention statement: Explicit retention period unconfirmed; inspect policy record

Evidence & scope →

Pricing & rules

Web personal free, all Pro/Pro+/Max monthly/annual tiers, credit subscriptions and 10 retail packs; excludes headshots/API · 2026-10-20

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Basic2026-10-20 ↗

Free

Free Official comparison lists Free forever; removal limits need separate verification

Pro2026-10-20 ↗

USD 10.99/month

USD 47.99/year

Annual 100 general credits/month; batch background-removal tool included

Monthly 100 general credits/month

Pro+2026-10-20 ↗

USD 23.99/month

USD 69.99/year

Annual 300 general credits/month; batch background-removal tool included

Monthly 300 general credits/month

Max 1k2026-10-20 ↗

USD 49.99/month

USD 167.92/year

Annual 1,000 general credits/month; batch background-removal tool included

Monthly 1,000 general credits/month

Credit subscription 2002026-10-20 ↗

USD 13.99/month

USD 69.99/year

Annual 200 credits/month, billed annually Rules [1]

Monthly 200 general credits/month Rules [3]

Credit subscription 5002026-10-20 ↗

USD 25.99/month

USD 143.99/year

Annual 500 credits/month, billed annually Rules [1]

Monthly 500 general credits/month Rules [3]

Credit subscription 10002026-10-20 ↗

USD 49.99/month

USD 259.99/year

Annual 1000 credits/month, billed annually Rules [1]

Monthly 1,000 general credits/month Rules [3]

Credit subscription 20002026-10-20 ↗

USD 99.99/month

USD 459.99/year

Annual 2000 credits/month, billed annually Rules [1]

Monthly 2,000 general credits/month Rules [3]

Credit subscription 50002026-10-20 ↗

USD 239.99/month

USD 1,099.99/year

Annual 5000 credits/month, billed annually Rules [1]

Monthly 5,000 general credits/month Rules [3]

Credit subscription 100002026-10-20 ↗

USD 459.99/month

USD 1,999.99/year

Annual 10000 credits/month, billed annually Rules [1]

Monthly 10,000 general credits/month Rules [3]

Max 2k2026-10-20 ↗

USD 99.99/month

USD 335.92/year

Monthly 2,000 general credits/month

Annual 2,000 general credits/month Rules [2]

Max 5k2026-10-20 ↗

USD 129.99/month

USD 755.92/year

Monthly 5,000 general credits/month

Annual 5,000 general credits/month Rules [2]

Max 10k2026-10-20 ↗

USD 229.99/month

USD 1,427.92/year

Monthly 10,000 general credits/month

Annual 10,000 general credits/month Rules [2]

Max 20k2026-10-20 ↗

USD 479.99/month

USD 2,687.92/year

Monthly 20,000 general credits/month

Annual 20,000 general credits/month Rules [2]

Max 50k2026-10-20 ↗

USD 1,149.99/month

USD 6,719.92/year

Monthly 50,000 general credits/month

Annual 50,000 general credits/month Rules [2]

Retail 1002026-10-20 ↗

USD 19.99 · one-time payment

Usage / one-time

Usage / one-time 100 general credits Rules [4]

Retail 2002026-10-20 ↗

USD 23.99 · one-time payment

Usage / one-time

Usage / one-time 200 general credits Rules [4]

Retail 5002026-10-20 ↗

USD 49.99 · one-time payment

Usage / one-time

Usage / one-time 500 general credits Rules [4]

Retail 10002026-10-20 ↗

USD 79.99 · one-time payment

Usage / one-time

Usage / one-time 1,000 general credits Rules [4]

Retail 20002026-10-20 ↗

USD 119.99 · one-time payment

Usage / one-time

Usage / one-time 2,000 general credits Rules [4]

Retail 50002026-10-20 ↗

USD 259.99 · one-time payment

Usage / one-time

Usage / one-time 5,000 general credits Rules [4]

Retail 100002026-10-20 ↗

USD 499.99 · one-time payment

Usage / one-time

Usage / one-time 10,000 general credits Rules [4]

Retail 200002026-10-20 ↗

USD 899.99 · one-time payment

Usage / one-time

Usage / one-time 20,000 general credits Rules [4]

Retail 300002026-10-20 ↗

USD 1,299.99 · one-time payment

Usage / one-time

Usage / one-time 30,000 general credits Rules [4]

Retail 500002026-10-20 ↗

USD 1,999.99 · one-time payment

Usage / one-time

Usage / one-time 50,000 general credits Rules [4]

39 plan / billing-period records, all listed; — means that period is not recorded.

[1] Rollover while subscribed, capped at 5 months

[2] Observed promotional annual total; subsequent renewal amount not specified on the price card

[3] Rollover while subscribed up to 5 months

[4] Only available to credit subscribers or Pro/Pro+/Max members; retail expiry is not stated in this section

All six Max tiers, monthly credit subscriptions and ten retail packs verified; retail packs require paid membership. Annual amounts preserve the observed promotion. Price cards do not specify renewal quotes, free removal counts, removal conversion or retail expiry; these remain unconfirmed.

Verification has gaps; unknown prices and quotas are not inferred.

Cancellation, sources & verification record

Cancel auto-renewal anytime in account settings

Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗

All subscription tiers and retail credits ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ · Capture 4 ↗ · Capture 5 ↗ · Capture 6 ↗ · Capture 7 ↗ · Capture 8 ↗ · Capture 9 ↗ · Capture 10 ↗ · Capture 11 ↗ · Capture 12 ↗ · Capture 13 ↗ · Capture 14 ↗

Allowance & disclosure on test date

Allows dragging up to 50 images into the batch editor, but clicking Download enforces a mandatory login wall

Evaluation basis & full scores · Overall 49.2/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 52/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	14 / 35	The landing page advertises 'Compress JPG, JPEG, PNG, WEBP... with Fotor’s free image compressor' (01_landing.png) without mentioning mandatory registration; after uploading and clicking Apply, clicking the top-right Download button triggers a 'Continue to Download Your Work' login wall that blocks guest export (03_download.png).	Evidence A →
Interaction restraint	13 / 30	Enforces a classic post-action login gate after the user has already configured and applied settings, accompanied by persistent top promo banners (02_workspace.png, 03_download.png).	Evidence A →
Background & reputation	15 / 20	Batch compression module within the globally recognized Fotor photo editing suite operated by Everimaging Ltd.	Evidence A →
Engineering & privacy	10 / 15	Re-encodes images in the browser via Canvas Blob generation, but forces personal account sign-in before allowing file export.	Evidence A →

Capability · 48/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	25 / 65	Severe algorithmic flaw on PNGs: under the default 'Format: Original / Image Quality: Medium' setting, Fotor lacks a PNG palette quantizer and simply re-encodes via unquantized browser Canvas `toBlob('image/png')`, INFLATING our 4,137.9 KB anchor PNG up to 5,886.7 KB (displaying a red `4.0MB → 5.7MB ↑ 42.3%` badge on its own UI, see 02_workspace.png) (25.0/65)	Evidence A →
Deliverable specifications	11 / 20	While 2048×2048 dimensions are preserved, guest downloads are blocked by a mandatory login modal and native PNG file size increases instead of shrinking (11.0/20)	Evidence A →
Processing speed	12 / 15	Local Canvas re-encoding takes ~2.4s, but workflow is stalled by the batch editor redirect and download login wall (12.0/15)	Evidence A →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

Kraken.io

kraken.io · Image compression

47/100

Seven-aspect task score

The interface avoids ad interruptions, but free files are capped at 1MB and many features need Pro; this fixture was rejected, so compression quality was not tested.

Tested export Blocked for files >1 MB ('File size too large. Upgrade to PRO and get 32MB max file size.') · Historical description; output not attached

Historical test · 2026-10-18
Signed-in flow; paid tier not standardized · Fixed PNG fixture · Historical page record; output not attached

Seven-aspect rationale →

Verified native export & same-run screenshots

Entry & rules ↗Result screen ↗Download & limits ↗

Use this capability ↗Tool profile →Full report →

Task quality

File reduction 0% · Output size 4137.9 KB; historical record only

Detailed facts & historical record

Measured fixture results

File reduction: 0% · Output size: 4137.9 KB

Fixture findings

The roughly 4MB fixture exceeded the recorded 1MB free limit; free compression could not complete.

Original historical observation

Kraken.io's free Web Interface remains stuck in a decade-old '1 MB max file size' quota (01_landing.png): when fed our 4,137.9 KB (2048×2048) benchmark PNG, the queue immediately rejects it with 'File size too large. Upgrade to PRO and get 32MB max file size.' (02_workspace.png, 03_download.png).

Suitable uses · historical assessment

Only usable for tiny web icons/thumbnails already under 1 MB, or enterprise developers with a paid Kraken.io PRO API subscription

Result & output evidence

No native output obtained; the preview does not establish final export quality.

Open result screenshot ↗

Full test record →

Evidence & scope →

Delivery capabilities

Blocked for files >1 MB ('File size too large. Upgrade to PRO and get 32MB max file size.') · Historical description; output not attached · Check watermark record

Detailed facts & historical record

Recorded export specifications

Blocked for files >1 MB ('File size too large. Upgrade to PRO and get 32MB max file size.') · Historical description; output not attached · Check watermark record

No native output is attached; check the evidence for specification and watermark claims.

Historical specification note · not an official maximum

Free tier capped strictly at 1 MB per file (rejects our 4.24 MB benchmark PNG; requires PRO for 32 MB)

Watermark observation

Watermark-free (only for tiny ≤1 MB files)

Batch & API

Supports multi-file and ZIP upload (all subject to the 1 MB/file free cap); full REST API on PRO

Recorded free-tier dimensions

Not verified

Attached file dimensions

Not verified

Evidence & scope →

Speed & reliability

About 0.2s end to end in this run; reliability not retested

Detailed facts & historical record

Timing observation: Network-observed server wait: 0.2s · End-to-end reference: 0.2s
Date & fixture: 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914)
Repeated tests & reliability: No standardized repetition count, success rate or variability range is recorded.

Evidence & scope →

Interaction experience

Detailed facts & historical record

Account requirements: Account required in this test
Sign-in methods: No login required for ≤1 MB; lifting the 1 MB cap requires a paid Kraken.io PRO subscription
Manual adjustment: Not verified
Interaction observations: No fake download ads, but steps 1, 3, and 4 (URL Paster, Image Resizing, Image Conversion) are locked behind 'available in Kraken.io PRO' and any file over 1 MB fails with a PRO upgrade prompt (03_download.png).

Evidence & scope →

Background & reputation

Nekkra UG (Kraken.io) · Long-term reputation not independently verified

Detailed facts & historical record

Service lifecycle notice: Not verified
Operator: Nekkra UG (Kraken.io)
Recorded origin: Germany
Domain history record: 2013–Present (13-year image optimization service)
Background & reputation assessment: Operated by Germany-based Nekkra UG (founded in 2013), well-known in legacy WordPress/Magento optimization workflows.
External reputation record: Not verified

Evidence & scope →

Engineering & privacy

Uploaded for cloud processing；Claims deletion within 12 hours; deletion not independently verified

Detailed facts & historical record

Processing location: Uploaded for cloud processing
Third-party tracking record: Not verified
Engineering & privacy assessment: Clearly states that optimized files remain available for 12 hours before automatic deletion.
Retention statement: Claims deletion within 12 hours; deletion not independently verified

Evidence & scope →

Pricing & rules

Kraken.io API and Web Interface PRO plans (Free / Micro / Basic / Advanced / Premium / Enterprise); USD · 2026-10-21

Plan · source date

Monthly / one-time

Annual bill / period

Quota & limits

Free Account2026-10-21 ↗

Free

Free 100 MB free testing quota without credit card; Free Web Interface restricts single files to ≤1 MB.

Micro Monthly2026-10-21 ↗

USD 5/month

—

Monthly 500 MB of images/month (USD 5 per additional GB); includes Web Interface PRO (up to 32 MB/file) and full API access.

Micro Yearly2026-10-21 ↗

—

USD 50/year

Annual USD 50/year (2 months free); 500 MB of images/month (USD 5 per additional GB), including Web Interface PRO and API.

Basic Monthly2026-10-21 ↗

USD 9/month

—

Monthly 2 GB of images/month (USD 4 per additional GB); includes Web Interface PRO and full API access.

Basic Yearly2026-10-21 ↗

—

USD 90/year

Annual USD 90/year (2 months free); 2 GB of images/month (USD 4 per additional GB).

Advanced Monthly2026-10-21 ↗

USD 19/month

—

Monthly 5 GB of images/month (USD 3 per additional GB); includes Web Interface PRO and full API access.

Advanced Yearly2026-10-21 ↗

—

USD 190/year

Annual USD 190/year (2 months free); 5 GB of images/month (USD 3 per additional GB).

Premium Monthly2026-10-21 ↗

USD 39/month

—

Monthly 15 GB of images/month (USD 2 per additional GB); includes Web Interface PRO and full API access.

Premium Yearly2026-10-21 ↗

—

USD 390/year

Annual USD 390/year (2 months free); 15 GB of images/month (USD 2 per additional GB).

Enterprise Monthly2026-10-21 ↗

USD 79/month

—

Monthly 60 GB of images/month (USD 1 per additional GB); includes Web Interface PRO and full API access.

Enterprise Yearly2026-10-21 ↗

—

USD 790/year

Annual USD 790/year (2 months free); 60 GB of images/month (USD 1 per additional GB).

11 plan / billing-period records, all listed; — means that period is not recorded.

The official pricing page lists the Free Account (100 MB testing quota; Free Web Interface capped at 1 MB/file) and five monthly/yearly tiers (yearly includes 2 months free at USD 50 / 90 / 190 / 390 / 790 per year). All paid plans include Web Interface PRO (up to 32 MB/file), API access, WordPress plugin, and Magento extension.

Cancellation, sources & verification record

No long-term contract; upgrade, downgrade, or cancel anytime under Account Settings. VAT applies to non-business EU customers.

Kraken.io official monthly/yearly pricing and FAQ ↗ · 2026-10-21 Capture 1 ↗ · Capture 2 ↗

Allowance & disclosure on test date

Free Web Interface strictly capped at ≤1 MB per file; paid PRO unlocks 32 MB per file

Small gray footer note below dropzone ('Free Web Interface has a file size limit of 1MB') + inline error row on upload

Evaluation basis & full scores · Overall 46.8/100

Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.

Scoring version 2.3.1 · Test fixture anchor_compress_v1

Honesty & reputation · 68/100 · 30%

Criterion	Score	Rationale	Basis
Pricing transparency	21 / 35	Discloses 'Free Web Interface has a file size limit of 1MB' in small gray footer text below the dropzone (01_landing.png); however, capping a 'Free Online Image Optimizer and Compressor' at 1 MB blocks almost every real-world high-res PNG/JPG that actually needs compression, immediately prompting 'File size too large. Upgrade to PRO and get 32MB max file size.' (02_workspace.png, 03_download.png).	Evidence A →
Interaction restraint	21 / 30	No fake download ads, but steps 1, 3, and 4 (URL Paster, Image Resizing, Image Conversion) are locked behind 'available in Kraken.io PRO' and any file over 1 MB fails with a PRO upgrade prompt (03_download.png).	Evidence A →
Background & reputation	16 / 20	Operated by Germany-based Nekkra UG (founded in 2013), well-known in legacy WordPress/Magento optimization workflows.	Evidence A →
Engineering & privacy	10 / 15	Clearly states that optimized files remain available for 12 hours before automatic deletion.	Evidence A →

Capability · 37.7/100 · 70%

Criterion	Score	Rationale	Basis
Task quality	20 / 65	Rejects our 4,137.9 KB (4.24 MB) standard 2048×2048 PNG benchmark anchor due to its strict 1 MB free file size cap (20.0/65)	Evidence B →
Deliverable specifications	7.7 / 20	Free tier is restricted to files ≤1 MB, preventing free export of standard high-resolution PNG/JPG images (7.7/20)	Evidence B →
Processing speed	10 / 15	Client-side size check rejects >1 MB files in 0.2s with a PRO upgrade notice (10.0/15)	Evidence B →

Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.

Tested tools withheld from Image compression ranking (2)

Factual blocker log · Unscored

These tools were tested using the same benchmark fixture for this topic, but hit a hard free-tier paywall / zero quota (B1) or backend error / missing standalone web entry (B2) before producing a verifiable free native export. They are listed here for transparency without speculative scores.

Website Planet Image Compressor (websiteplanet.com) B2 · Backend error / online entry unavailable

Uploading the 4.04 MB benchmark PNG repeatedly failed as toolImageUpload/index.php returned correct_image_type: 0 ("File type is not supported") with no downloadable output.

Tested on: 2026-10-19 · View product profile & pricing baseline →

Zamzar Compress PNG (zamzar.com) B1 · Hard paywall / 0 free export quota

The 4.04 MB standard PNG fixture exceeds Zamzar's 1 MB free-tier file size limit, blocking compression behind a paid subscription.

Tested on: 2026-10-19 · View product profile & pricing baseline →

Image compression selection FAQ

Which image compression tools work without login or watermarks?

Out of 31 assessed tools, 26 exported watermark-free files without requiring an account on their test dates, led by Squoosh (97/100, 2026-10-18), JPEG-Optimizer (95/100, 2026-10-19), TinyPNG (93/100, 2026-10-18). Use the "Quick guest use" preset above to filter all 26 options.

Which image compression tool scored highest on task quality and overall performance?

By overall task score, Squoosh ranks first (97/100, tested 2026-10-18); by task quality score alone, Squoosh leads (62/100), while quickimagekit.com recorded the fastest server wait (0s).

How should I choose between one-off guest use and commercial plans for image compression?

For a one-off file, start with the 26 guest watermark-free tools or pay-as-you-go credit packs to avoid recurring subscriptions. For team or client work, use the "Verified commercial plan" preset to inspect the 0 tools with sourced commercial rights.

What do these results cover?

Historical records cover specific fixtures and test paths. Reports show samples, dates, native files and limitations.

How are tools evaluated?

Evaluation covers quality, exports, speed, pricing, interaction, background and privacy. Scores and reasons are available in each report.

Image compression tools compared

Scan the candidates

Task quality

Delivery capabilities

Speed & reliability

Interaction experience

Background & reputation

Engineering & privacy

Pricing & rules

Honesty & reputation · 99/100 · 30%

Capability · 95.6/100 · 70%

Task quality

Delivery capabilities

Speed & reliability

Interaction experience

Background & reputation

Engineering & privacy

Pricing & rules

Honesty & reputation · 94/100 · 30%

Capability · 95/100 · 70%

Task quality

Delivery capabilities

Speed & reliability

Interaction experience

Background & reputation

Engineering & privacy

Pricing & rules

Honesty & reputation · 93/100 · 30%

Capability · 93.6/100 · 70%

Task quality

Delivery capabilities

Speed & reliability

Interaction experience

Background & reputation

Engineering & privacy

Pricing & rules

Honesty & reputation · 96/100 · 30%

Capability · 92/100 · 70%

Task quality

Delivery capabilities

Speed & reliability

Interaction experience

Background & reputation

Engineering & privacy

Pricing & rules

Honesty & reputation · 95/100 · 30%

Capability · 92/100 · 70%

Task quality

Delivery capabilities

Speed & reliability

Interaction experience

Background & reputation

Engineering & privacy

Pricing & rules

Honesty & reputation · 93/100 · 30%

Capability · 91.5/100 · 70%

Task quality

Delivery capabilities

Speed & reliability

Interaction experience

Background & reputation

Engineering & privacy

Pricing & rules

Honesty & reputation · 91.5/100 · 30%

Capability · 92/100 · 70%

Task quality

Delivery capabilities

Speed & reliability

Interaction experience

Background & reputation

Engineering & privacy

Pricing & rules

Honesty & reputation · 90/100 · 30%

Capability · 92.5/100 · 70%

Task quality

Delivery capabilities

Speed & reliability

Interaction experience

Background & reputation

Engineering & privacy