Compressor.io
Image compression online tool operated by Compressor.io (Free tier + subscription)
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 edgesCompressor.io, operated by Compressor.io (France / European Independent Tool Team) under a "Free tier + subscription" model, scored 86/100 in our image compression benchmark. Overall finding: Free size and Pro feature limits are disclosed upfront; login-free export retains full-size PNG with good quality, alongside banner ads.
France / European Independent Tool Team · 2013–Present (13-year established image optimizer)
Provenance baseline: 18/20 · Well-known online image optimization service operating since 2013 with strong adoption among web designers and developers.
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).
Pricing transparency baseline: 31/35 · Cancellation: 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).
Temporary processing queue is automatically purged after session
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 belowCompressor.io web plans (Free / Web Compressor Pro); USD · 2026-10-21
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 record
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).
Compressor.io official pricing and features comparison page ↗ · 2026-10-21 Capture 1 ↗
Archived official pricing sources: Compressor.io official pricing and features comparison page (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 | 86/100 | Free size and Pro feature limits are disclosed upfront; login-free export retains full-size PNG with good quality, alongside banner ads. | 2048 × 2048 · PNG Historical test · 2026-10-18 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：Compressor.io 86/100 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：Compressor.io 86/100 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：Compressor.io 86/100 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：Compressor.io 86/100 vs TinyWow 82/100
Linked capability test: Image compression
2026-10-18 · Native output attached. Findings cover the recorded fixture and conditions; paid specifications may be untested.
Task quality
File reduction 47.38% · Output size 2177.3 KB
Detailed facts & historical record
- Measured fixture results
File reduction: 47.38% · Output size: 2177.3 KB
- Fixture findings
Reduced this fixture by about 47% with gradients retained; the recorded free file limit was 10MB.
- 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.
- 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
- 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 full-resolution PNG free direct export (up to 10 MB per file)
- Watermark observation
Watermark-free
- Batch & API
Supports multi-file drag-and-drop and one-click Download All
- Recorded free-tier dimensions
2048 × 2048
- Attached file dimensions
2048 × 2048 · PNG
Speed & reliability
About 10.5s end to end in this run; reliability not retested
Detailed facts & historical record
- Timing observation
Network-observed server wait: 8.4s · End-to-end reference: 10.5s
- Date & fixture
2026-10-18 · 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 (email login for Pro subscribers)
- Manual adjustment
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).
Background & reputation
Compressor.io · Long-term reputation not independently verified
Detailed facts & historical record
- Service lifecycle notice
Not verified
- Operator
Compressor.io
- Recorded origin
France / European Independent Tool Team
- Domain history record
2013–Present (13-year established image optimizer)
- Background & reputation assessment
Well-known online image optimization service operating since 2013 with strong adoption among web designers and developers.
- External reputation record
Not verified
Engineering & privacy
Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record
Detailed facts & historical record
- Processing location
Uploaded for cloud processing
- Third-party tracking record
Not verified
- Engineering & privacy assessment
Supports anonymous no-login compression; temporary download links are cleaned up automatically after the session.
- Retention statement
Explicit retention period unconfirmed; inspect policy record
Task free allowance & pricing disclosure
Free up to 10 MB per file with both Lossy and Lossless modes; Custom quality and image resizing require Pro
Discloses 'Max 10 MB' directly above the Select files button
Site-wide plans belong to the product node (see Product-level pricing baseline ↑).
Expand site-wide plans aligned for Image compression (2 records)
Compressor.io web plans (Free / Web Compressor Pro); USD · 2026-10-21
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 record
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).
Compressor.io official pricing and features comparison page ↗ · 2026-10-21 Capture 1 ↗
Evaluation basis & full scores · Overall 86.3/100
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 · 88/100 · 30%
| Criterion | Score | Rationale | 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. | Evidence A → |
| 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). | Evidence A → |
| Background & reputation | 18 / 20 | Well-known online image optimization service operating since 2013 with strong adoption among web designers and developers. | Evidence A → |
| Engineering & privacy | 14 / 15 | Supports anonymous no-login compression; temporary download links are cleaned up automatically after the session. | Evidence A → |
Capability · 85.5/100 · 70%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| 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) | Evidence A → |
| Deliverable specifications | 18.5 / 20 | Preserves full 2048×2048 resolution and native PNG format with one-click no-login download (18.5/20) | Evidence A → |
| Processing speed | 11.5 / 15 | Total cloud upload and optimization time ~10.5s (~8.4s pure server processing) (11.5/15) | 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/compressor.io/) <a href="https://realtest.org/tools/compressor.io/"><img src="https://realtest.org/badges/compressor.io.svg" alt="Compressor.io — RealTest" height="24" /></a> 
[](https://realtest.org/tools/compressor.io/#feature-image-compressor)