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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 | Squoosh | XConvert | Switch / compare |
|---|---|---|---|
| Image compression | 97/100 JPEG · Output attached | 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 | Squoosh (Google Chrome Labs) 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 | 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 | 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 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 recordCompletely free open-source tool with no accounts or subscription charges. Squoosh official page and open-source 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 | Unlimited free forever with no daily count or file size caps | Free no-login compression and export for standard files; oversized files and priority queues require Pro |
| Cancellation & refunds | Completely free open-source tool with no accounts or subscription charges. | Cancel anytime in the User Portal; no refunds, with access through the paid period. |
| Disclosure of costs & limits | Original size, compressed size, and reduction percentage are displayed in real time on drop | Workspace options and download queue status are transparent |
| Task quality | ||
| Measured fixture results | File reduction: 93.26% · Output size: 278.8 KB | File reduction: 48.14% · Output size: 2146.1 KB |
| Fixture findings | Local processing reduced this fixture by about 93%; results depend on the codec and settings. | Exported full-size PNG with about 48% size reduction in this test; other files need separate tests. |
| 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). | 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, developers, and designers who refuse to upload sensitive photos to cloud servers and want fine-grained codec control with real-time split-screen preview | 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 | JPEG · Output attached · No watermark in test | 2048 × 2048 · PNG · No watermark in test |
| Historical specification note · not an official maximum | 2048×2048 (unlimited dimensions, local WebAssembly zero-watermark export) | 2048×2048 (native resolution watermark-free PNG direct export) |
| Watermark observation | Watermark-free | Watermark-free |
| Batch & API | Focused on single-image interactive codec tuning | Supports multi-file queue uploads and unified `/downloads` management |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | Not verified | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Recorded local processing time: 0.85s · End-to-end reference: 0.85s | Network-observed server wait: 7s · End-to-end reference: 9.1s |
| Date & fixture | 2026-10-18 · 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 | 100% No Login Required (no account system, pure client-side browser utility) | No login required; optional account sign-in available |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Zero sign-up, zero popups, and zero ad trackers—opens directly into a millisecond-responsive split-screen comparison workspace. | 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 | Google Chrome Labs | XConvert (xconvert.com) |
| Recorded origin | Mountain View, California, USA | Online File Conversion & Compression Provider |
| Domain history record | 2018–Present (maintained by Google Chrome DevRel) | 2018–Present (8 years in operation) |
| Background & reputation assessment | Created and open-sourced by the Google Chrome Web DevRel team as the reference WebAssembly image codec playground. | 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 | 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. | 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 | 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). | 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 | 30 / 30 Zero sign-up, zero popups, and zero ad trackers—opens directly into a millisecond-responsive split-screen comparison workspace. | 25.5 / 30 Clean ad-free workspace; the downloads page only shows gentle backlink-sharing and Trustpilot review cards. |
| Background & reputation | 19.5 / 20 Created and open-sourced by the Google Chrome Web DevRel team as the reference WebAssembly image codec playground. | |
| 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. | 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 | 61.6 / 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) | 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 Preserves exact 2048×2048 dimensions (unless Resize is toggled by the user) with unrestricted local PNG/JPEG/WebP/AVIF download (20.0/20) | 20 / 20 100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20) |
| 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) | 11.5 / 15 Edge server explicitly logs 'Completed: Took 7 seconds', delivering steady cloud performance (11.5/15) |
