JPEG-Optimizer
Image compression online tool operated by JPEG-Optimizer (jpeg-optimizer.com) (Completely free)
Product node overview & trust baseline
Operator provenance, privacy baseline and site-wide pricing belong directly to the product node and are inherited across linked task edgesJPEG-Optimizer, operated by JPEG-Optimizer (jpeg-optimizer.com; Independent Web Utility) under a "Completely free" model, scored 95/100 in our image compression benchmark. Overall finding: 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.
Independent Web Utility · 2010–Present (16-year established domain)
Provenance baseline: 18/20 · Long-running web image optimization utility (jpeg-optimizer.com) operating since 2010, modernized with a pure client-side browser processing pipeline.
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.
Pricing transparency baseline: 33.5/35 · Cancellation: Completely free in-browser tool with no accounts or paid subscriptions.
Files never leave the user's browser memory and are cleared immediately when the tab closes
No third-party services listed in this record; this is not proof that none exist.
Product-level pricing & rules baseline
Verified plans, billing periods and cancellation terms owned by this product node; task-specific credit costs and free export limits are detailed per capability edge belowJPEG-Optimizer in-browser bulk image compressor and resizer · 2026-10-21
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 ↗
Archived official pricing sources: JPEG-Optimizer official page and privacy notice (2026-10-21) [text snapshot ↗]
Capability map & linked task edges
Whenever a capability passes fixed-fixture testing, an edge is automatically linked between this product node and the task topic for horizontal comparison.
| Linked task edge | Score | Assessment · historical test | Test scope & delivery | Inspect capability / follow edge |
|---|---|---|---|---|
| Image compression | 95/100 | 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. | 2048 × 2048 · PNG Historical test · 2026-10-19 Guest flow · Fixed PNG fixture · Output attached |
Tested task edges (with scores and native artifacts) are strictly separated from discovered untested capabilities (unscored).
Peer product comparison across shared task edges
Matched by overlapping tested task edges; compare site-wide billing models alongside per-task benchmark scoresThe 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.
- Image compression：JPEG-Optimizer 95/100 vs Nero AI 88/100
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.
- Image compression：JPEG-Optimizer 95/100 vs PicWish 73/100
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.
- Image compression：JPEG-Optimizer 95/100 vs Img2Go 80/100
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.
- Image compression：JPEG-Optimizer 95/100 vs TinyWow 82/100
Linked capability test: Image compression
2026-10-19 · Native output attached. Findings cover the recorded fixture and conditions; paid specifications may be untested.
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
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
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.
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.
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
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
Task free allowance & pricing disclosure
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
Site-wide plans belong to the product node (see Product-level pricing baseline ↑).
Expand site-wide plans aligned for Image compression (1 records)
JPEG-Optimizer in-browser bulk image compressor and resizer · 2026-10-21
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 ↗
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.
Developer & citation kit · Claim updates, request benchmarks & embed verified badges
Product developers and writers can embed these SVG badges in official websites, GitHub READMEs or documentation, or use the channels below to sync product-wide plans and capabilities.
[](https://realtest.org/tools/jpeg-optimizer.com/) <a href="https://realtest.org/tools/jpeg-optimizer.com/"><img src="https://realtest.org/badges/jpeg-optimizer.com.svg" alt="JPEG-Optimizer — RealTest" height="24" /></a> 
[](https://realtest.org/tools/jpeg-optimizer.com/#feature-image-compressor)