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Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | Optimizilla | FreeConvert | Switch / compare |
|---|---|---|---|
| Image compression | 88/100 2048 × 2048 · PNG | 84/100 2048 × 2048 · PNG | Active task |
| PDF to Word | Not tested in topic | 92/100 Full 2-page .docx (9.4 KB, 44 paragraphs, 16/16 table cells) · Historical description; output not attached | Compare in task topic → |
| PDF compression | Not tested in topic | 93/100 PDF · Output attached | Compare in task topic → |
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Browse this task →| Criterion | 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 | FreeConvert Image Compressor 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 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | 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 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 recordAd-supported free tool with no accounts or subscription charges. ImageCompressor.com official page and instructions ↗ · 2026-10-21 Capture 1 ↗ | 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 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 recordSubscriptions 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 feature and pricing page ↗ · 2026-10-20 Capture 1 ↗ Official feature and pricing page ↗ · 2026-10-20 Capture 1 ↗ 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 ↗ |
| Free & trial allowance on the test date | Supports multi-file batch drag-and-drop and per-image palette color tuning (2–256 colors) with no daily cap | Free tier supports up to 1 GB per file, capped at ~20–25 cloud Conversion Minutes per day |
| Cancellation & refunds | Ad-supported free tool with no accounts or subscription charges. | 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. |
| Disclosure of costs & limits | All features and sliders are unlocked upfront with zero hidden paywalls | Discloses 'Max file size 1GB. Sign Up for more' directly below the upload button |
| Task quality | ||
| Measured fixture results | File reduction: 57.64% · Output size: 1752.7 KB | File reduction: 47.5% · Output size: 2172.4 KB |
| Fixture findings | Offers before/after preview and colour adjustment; distinguish nearby ad buttons from the real download. | Reduced this fixture by about 48% and accepts large inputs; allow for cloud waiting and ads. |
| 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). | 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 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 | 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 | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 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) | 2048×2048 (no-login native-resolution watermark-free PNG, up to 1 GB per file) |
| Watermark observation | Watermark-free | Watermark-free |
| Batch & API | Supports multi-image batch compression in browser; no developer API | Supports batch uploads, Google Drive / Dropbox integration, and developer REST API |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | 2048 × 2048 · PNG | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Recorded local processing time: 11.88s · End-to-end reference: 11.88s | Network-observed server wait: 8.5s · End-to-end reference: 12s |
| Date & fixture | 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914) | 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | No login in this test | No login in this test |
| Sign-in methods | No login required (no account system on the site) | No login required; optional Pro subscription login |
| Manual adjustment | Not verified | 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). | 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). |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Optimizilla / ImageCompressor.com | TRMedia Inc. (FreeConvert.com) |
| Recorded origin | Independent European Web Utility (Launched 2014) | Canada |
| Domain history record | 2014–Present (12-year image compression benchmark) | 2018–Present (major global cloud file conversion platform) |
| Background & reputation assessment | Operating since 2014 under the Optimizilla brand, ranking among the highest-traffic search destinations for online image compression. | 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 | Not verified |
| Engineering & privacy | ||
| Processing location | On-device processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | 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. | 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 | This flow runs locally; post-close deletion not independently verified | Claims deletion within 8 hours; deletion not independently verified |
| Evaluation 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). | 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. |
| 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). | 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). |
| Background & reputation | 18 / 20 Operating since 2014 under the Optimizilla brand, ranking among the highest-traffic search destinations for online image compression. | 18 / 20 Operated by Canada-based TRMedia Inc. with ISO/IEC 27001 information security certification and tens of millions of monthly visits. |
| 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. | 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). |
| 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) | 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) |
| Deliverable specifications | 20 / 20 Preserves 100% of the 2048×2048 pixel dimensions and native PNG format without watermarks or login requirements (20.0/20) | 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) |
| 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) | 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) |
