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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 | JPEG-Optimizer | XConvert | Switch / compare |
|---|---|---|---|
| Image compression | 95/100 2048 × 2048 · PNG | 88/100 2048 × 2048 · PNG | Active task |
| PDF to Word | Not tested in topic | 93/100 Full 2-page .docx (8.6 KB, 43 paragraphs, 16/16 table cells) · Historical description; output not attached | Compare in task topic → |
| PDF compression | Not tested in topic | 94/100 PDF · Output attached | Compare in task topic → |
| PDF merge & split | Not tested in topic | 94/100 PDF · Output attached | Compare in task topic → |
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Browse this task →| Criterion | JPEG-Optimizer (Browser-Local PNG/JPEG/GIF Compressor) 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 | XConvert Compress PNG 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 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | 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 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 recordCompletely free in-browser tool with no accounts or paid subscriptions. JPEG-Optimizer official page and privacy notice ↗ · 2026-10-21 Capture 1 ↗ | 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 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 recordCancel anytime in the User Portal; no refunds, with access through the paid period. Official feature and pricing page ↗ · 2026-10-20 Capture 1 ↗ Official feature and pricing page ↗ · 2026-10-20 Capture 1 ↗ |
| Free & trial allowance on the test date | 100% free with up to 20 images per batch and one-click ZIP download | Free no-login compression and export for standard files; oversized files and priority queues require Pro |
| Cancellation & refunds | Completely free in-browser tool with no accounts or paid subscriptions. | Cancel anytime in the User Portal; no refunds, with access through the paid period. |
| Disclosure of costs & limits | Free batch quota and browser-local privacy guarantee are disclosed upfront above the fold | Workspace options and download queue status are transparent |
| Task quality | ||
| Measured fixture results | File reduction: 61.76% · Output size: 1582.4 KB | File reduction: 48.14% · Output size: 2146.1 KB |
| Fixture findings | Local processing reduced this fixture by about 62%; other formats and images need separate tests. | Exported full-size PNG with about 48% size reduction in this test; other files 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). | 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 | Privacy-conscious users who strictly prohibit cloud uploads and need fast 20-image batch PNG/JPEG compression in the browser | Users who want a clean ad-free interface with post-compression online Preview and Re-edit capabilities |
| 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 (native resolution watermark-free PNG direct export) | 2048×2048 (native resolution watermark-free PNG direct export) |
| Watermark observation | Watermark-free | Watermark-free |
| Batch & API | Supports 20-image batch local compression and ZIP archive export; no external API | Supports multi-file queue uploads and unified `/downloads` management |
| 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: 1.4s · End-to-end reference: 1.4s | Network-observed server wait: 7s · End-to-end reference: 9.1s |
| Date & fixture | 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914) | 2026-10-19 · 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 site) | No login required; optional account sign-in available |
| Manual adjustment | Not verified | 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. | Clean ad-free workspace; the downloads page only shows gentle backlink-sharing and Trustpilot review cards. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | JPEG-Optimizer (jpeg-optimizer.com) | XConvert (xconvert.com) |
| Recorded origin | Independent Web Utility | Online File Conversion & Compression Provider |
| Domain history record | 2010–Present (16-year established domain) | 2018–Present (8 years in operation) |
| Background & reputation assessment | Long-running web image optimization utility (jpeg-optimizer.com) operating since 2010, modernized with a pure client-side browser processing pipeline. | Operated by the XConvert team since 2018 on AWS EC2 edge clusters. |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | On-device processing | Processing location unconfirmed |
| Third-party tracking record | Not verified | 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. | 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 | This flow runs locally; post-close deletion not independently verified | Explicit retention period unconfirmed; inspect policy record |
| Evaluation 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). | 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. |
| 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. | 25.5 / 30 Clean ad-free workspace; the downloads page only shows gentle backlink-sharing and Trustpilot review cards. |
| 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. | |
| 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. | 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. |
| 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) | 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) |
| Deliverable specifications | 20 / 20 100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20) | 20 / 20 100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20) |
| Processing speed | 13.8 / 15 100% local browser computation (0s network upload), completing 4.14 MB PNG compression in ~1.4s (13.8/15) | 11.5 / 15 Edge server explicitly logs 'Completed: Took 7 seconds', delivering steady cloud performance (11.5/15) |
