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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 | Compressor.io | PicWish | Switch / compare |
|---|---|---|---|
| Background removal | Not tested in topic | 83/100 2048 × 2048 · PNG | Compare in task topic → |
| Image compression | 86/100 2048 × 2048 · PNG | 73/100 JPEG · Output attached | Active task |
| Image upscaling | Not tested in topic | 82/100 1280×1280 (2.5x free unwatermarked) / 2048×2048 (4.0x preview carries bottom notice watermark) · Historical description; output not attached | Compare in task topic → |
| Object removal | Not tested in topic | 84/100 2048 × 2048 · PNG | Compare in task topic → |
| Image generation | Not tested in topic | 85/100 JPEG · Output attached | Compare in task topic → |
| Photo restoration | Not tested in topic | 56/100 JPEG · Output attached | Compare in task topic → |
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Browse this task →| Criterion | 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 | PicWish Image Compressor 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 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | 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 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 recordCancel 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 ↗ | 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 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] 13 plan / billing-period records, all listed; — means that period is not recorded. 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 recordCancel 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 ↗ |
| Free & trial allowance on the test date | Free up to 10 MB per file with both Lossy and Lossless modes; Custom quality and image resizing require Pro | Compressed canonical 4,237,170-byte PNG to 1,447,201 bytes; downloaded 2048×2048 JPEG (-65.85%) after free Google sign-in. |
| Cancellation & refunds | 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). | Cancel under My Orders; request refunds through official support, eligibility not separately verified. |
| Disclosure of costs & limits | Discloses 'Max 10 MB' directly above the Select files button | Not verified |
| Task quality | ||
| Measured fixture results | File reduction: 47.38% · Output size: 2177.3 KB | File reduction: 65.85% · Output size: 1413.3 KB |
| Fixture findings | Reduced this fixture by about 47% with gradients retained; the recorded free file limit was 10MB. | Retained 2000x2000 dimensions with ~91% file size reduction; the PNG input was converted to lossy JPEG. |
| 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. | 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 | Web designers compressing images under 10 MB who want high visual fidelity (PSNR > 38 dB) and easy switching between Lossy and Lossless modes | Not verified |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | JPEG · Output attached · Check watermark record |
| Historical specification note · not an official maximum | 2048×2048 full-resolution PNG free direct export (up to 10 MB per file) | Not verified |
| Watermark observation | Watermark-free | Not verified |
| Batch & API | Supports multi-file drag-and-drop and one-click Download All | Not verified |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | 2048 × 2048 · PNG | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 8.4s · End-to-end reference: 10.5s | Network-observed server wait: 1.43s · End-to-end reference: 3.54s |
| 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 | Not verified |
| Sign-in methods | No login required (email login for Pro subscribers) | Google or email login required when clicking Download Image |
| Manual adjustment | Not verified | 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). | Uses a post-processing login wall at the download step and devotes half the result panel to promoting the desktop app. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Compressor.io | AI Image Tool Matrix (Wangxu Tech / Apowersoft) |
| Recorded origin | France / European Independent Tool Team | Not verified |
| Domain history record | 2013–Present (13-year established image optimizer) | Not verified |
| Background & reputation assessment | Well-known online image optimization service operating since 2013 with strong adoption among web designers and developers. | Operated by Wangxu Technology (HK) Co., Limited (Apowersoft). |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | Not verified |
| Engineering & privacy assessment | Supports anonymous no-login compression; temporary download links are cleaned up automatically after the session. | 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 | Explicit retention period unconfirmed; inspect policy record |
| Evaluation 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. | 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. |
| 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). | 12 / 30 Uses a post-processing login wall at the download step and devotes half the result panel to promoting the desktop app. |
| Background & reputation | 18 / 20 Well-known online image optimization service operating since 2013 with strong adoption among web designers and developers. | |
| Engineering & privacy | 14 / 15 Supports anonymous no-login compression; temporary download links are cleaned up automatically after the session. | 10 / 15 HTTPS upload to Alibaba Cloud OSS plus gw.aoscdn.com async task queue; requires account login to retrieve the compressed file. |
| 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) | 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. |
| Deliverable specifications | 18.5 / 20 Preserves full 2048×2048 resolution and native PNG format with one-click no-login download (18.5/20) | 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. |
| Processing speed | 11.5 / 15 Total cloud upload and optimization time ~10.5s (~8.4s pure server processing) (11.5/15) | 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. |
