ShortPixel Online Image Compressor · Image compression
Login-free access offers three compression modes without third-party ads and discloses batch and size limits; this run cut size about 68% using cloud processing.
US-West (California, AS2914)
2048 × 2048 · PNG · Open native file ↗
Subsequent pricing and service checks are shown separately without altering historical scores.
One run does not establish all complex scenes, untested paid maxima or long-term uptime.
Plans & historical pricing
ShortPixel free web tool, one-time non-expiring credit packs, and annual unlimited plans; USD · 2026-10-21
Card displays only the USD 8.33/month equivalent ("Saving $31.98 / year") without printing the annual invoice total.
Card displays only the USD 13.33/month equivalent ("Saving $31.98 / year") without printing the annual invoice total.
7 plan / billing-period records, all listed; — means that period is not recorded.
The online web compressor is free without login for files ≤10 MB (login removes the 10 MB limit; free plan includes 100 credits/month). The pricing page lists four non-expiring one-time credit packs (30K at USD 19.99, 50K at USD 29.99, 100K at USD 49.99, and 250K at USD 99.00). The Unlimited Yearly cards display only monthly equivalents (USD 8.33/month and USD 13.33/month, "Saving $31.98 / year") without printing the annual invoice total on the card, so the annual totals are kept unverified.
Verification has gaps; unknown prices and quotas are not inferred.
Cancellation, sources & verification record
One-time credit packs never expire; subscriptions can be cancelled anytime in the account dashboard under official Terms.
ShortPixel official pricing page (annual plans and one-time credit packs) ↗ · 2026-10-21 Capture 1 ↗ · Capture 2 ↗
Pricing recorded on the test date · 2026-10-18
Free web tool (≤10 MB); API / plugin plans $9.99/mo or $19.99 one-time for 30,000 credits
Free web tool + monthly subscription or non-expiring credit packs
Historical context only; not current purchase guidance.
Delivery & access
- Free delivery record
- 2048 × 2048 full-resolution PNG (1,343.0 KB)
- Attached file dimensions
- 2048 × 2048 · PNG
Read directly from the attached file; this does not establish free download availability at that size.
- Watermark
- Watermark-free
- Free allowance
- Up to 50 files per batch and 10 MB per file without login; free access to Lossy, Glossy, and Lossless modes
- Account requirements
- No login required (free account login removes the 10 MB per-file cap)
- Maximum specification record
- 2048×2048 full-resolution PNG free direct export (up to 10 MB and 50 files without login)
May include advertised capabilities; this does not establish a tested paid tier.
- Batch & API
- Supports up to 50 files per batch on web, plus WordPress plugins and REST API
- Manual refinement
- Not recorded or not verified
Tested result & sample
ShortPixel's online compressor is completely ad-free, discloses its 10 MB guest limit upfront (01_landing.png), and freely unlocks Lossy, Glossy, and Lossless modes. In default Lossy mode, it shrinks our 4,137.9 KB PNG to 1,343.0 KB (-67.54%, 3.08× ratio, 02_workspace.png) at 34.72 dB PSNR and 0.9954 SSIM.
- Fixture
- anchor_compress_v1
- Recorded environment
- US-West (California, AS2914)
- Network-observed server wait
- 9.8 s
- End-to-end reference
- 12.2 s
Network wait includes round trips, queuing and polling error, not pure inference time. Local timings depend on the device; repetition counts are not standardized in legacy records.
Experience, rules & trust
- Disclosure
- Discloses 'maximum 10Mb. Login to remove the restriction.' upfront below the dropzone
- Interaction
- Clean workspace with zero third-party ad banners, offering Lossy / Glossy / Lossless mode toggles and direct one-click PNG download from the thumbnail card (02_workspace.png, 03_download.png).
- Entity record
- ShortPixel (ID Scout SRL)
- Origin
- Bucharest, Romania (EU GDPR compliant)
- Domain history record
- 2014–Present (12-year image optimization specialist)
- Third-party tracking record
- Not recorded or not verified
- External information
- Not recorded or not verified
- Processing
- ShortPixel cloud SmartCompress cluster
- Retention statement
- Temporary optimized files are automatically purged from cloud cache
A recorded statement does not verify deletion or all data-processing behavior.
Verifiable audit trail & evidence
Four SHA-256-verified stages link the benchmark fixture, same-run interface screenshots, native exported artifact and archived pricing sources.
anchor_compress_v1 · Inspect fixture & file inspector →
Captures entry rules, result view and export disclosure.
ShortPixel official pricing page (annual plans and one-time credit packs) (snapshot ↗)
Screenshots, native output and official claims support different conclusions. Evidence grades are not product safety certifications.
Evaluation basis & full scores · Overall 86/100
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 · 90/100 · 30%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Pricing transparency | 32 / 35 | Clearly states right below the dropzone: 'Drop up to 50 files here to optimize. Compress JPG, GIF and PNG online. The files should have maximum 10Mb. Login to remove the restriction.' (01_landing.png). | Evidence A → |
| Interaction restraint | 26 / 30 | Clean workspace with zero third-party ad banners, offering Lossy / Glossy / Lossless mode toggles and direct one-click PNG download from the thumbnail card (02_workspace.png, 03_download.png). | Evidence A → |
| Background & reputation | 18 / 20 | Operated by ShortPixel (ID Scout SRL, founded in 2014), one of the most widely installed image optimization providers in the WordPress ecosystem. | Evidence A → |
| Engineering & privacy | 14 / 15 | Processes images via ShortPixel's GDPR-compliant European cloud cluster without requiring personal details for guests. | Evidence A → |
Capability · 84.3/100 · 70%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Task quality | 54.3 / 65 | Reduces file size by 67.54% (3.08×) with 34.72 dB PSNR and 0.9954 SSIM, balancing strong compression with clean visual fidelity (54.3/65) | Evidence A → |
| Deliverable specifications | 19 / 20 | Preserves full 2048×2048 resolution and native PNG format while offering free Lossy/Glossy/Lossless mode switching (19.0/20) | Evidence A → |
| Processing speed | 11 / 15 | Cloud SmartCompress processing takes ~9.8s (~12.2s end-to-end) (11.0/15) | 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.
Revisions & corrections
- 2026-10-18
Initial real-machine benchmark and PSNR/SSIM/ratio verification on Mode A compression anchor (anchor_compress_v1).