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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 | ShortPixel | TinyWow | Switch / compare |
|---|---|---|---|
| Background removal | Not tested in topic | 62/100 2048 × 2048 · PNG | Compare in task topic → |
| Image compression | 86/100 2048 × 2048 · PNG | 82/100 2048 × 2048 (3,744.0 KB PNG, -9.52%) · Historical description; output not attached | Active task |
| PDF to Word | Not tested in topic | 71/100 7.9 KB OOXML package named .doc (100% text, 0 native tables) · Historical description; output not attached | Compare in task topic → |
| PDF compression | Not tested in topic | 93/100 PDF · Output attached | Compare in task topic → |
| PDF merge & split | Not tested in topic | 95/100 PDF · Output attached | Compare in task topic → |
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Browse this task →| Criterion | ShortPixel Online Image Compressor Image compression 86/100 Seven-aspect task score 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. Tested export 2048 × 2048 · PNG Historical test · 2026-10-18 | TinyWow Compress Image Size Image compression 82/100 Seven-aspect task score Free login-free access offers many formats but requires verification and cloud upload; default PNG settings preserve quality with only about 10% size reduction. Tested export 2048 × 2048 (3,744.0 KB PNG, -9.52%) · Historical description; output not attached Historical test · 2026-10-19 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | ShortPixel free web tool, one-time non-expiring credit packs, and annual unlimited plans; USD · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Web / Free Plan2026-10-21 ↗ Free Free Free Web tool free without login up to 50 images/batch and ≤10 MB/file (login removes 10 MB limit); Free account includes 100 credits/month. One-time 30K2026-10-21 ↗ USD 19.99 · one-time payment Usage / one-time Usage / one-time 30,000 credits (never expire) + 100 AI credits/month + 150 GB CDN traffic across unlimited websites. Rules [1] One-time 50K2026-10-21 ↗ USD 29.99 · one-time payment Usage / one-time Usage / one-time 50,000 credits (never expire) + 100 AI credits/month + 250 GB CDN traffic across unlimited websites. Rules [1] One-time 100K2026-10-21 ↗ USD 49.99 · one-time payment Usage / one-time Usage / one-time 100,000 credits (never expire) + 100 AI credits/month + 500 GB CDN traffic across unlimited websites. Rules [1] One-time 250K2026-10-21 ↗ USD 99 · one-time payment Usage / one-time Usage / one-time 250,000 credits (never expire) + 100 AI credits/month + 1.25 TB CDN traffic across unlimited websites. Rules [1] Unlimited Yearly2026-10-21 ↗ — Annual price not verified Annual Unlimited monthly credits, unlimited websites, 100 AI credits/month, 500 GB CDN/month; card displays USD 8.33/month equivalent (2 Months Free). Card displays only the USD 8.33/month equivalent ("Saving $31.98 / year") without printing the annual invoice total. Unlimited AI Yearly2026-10-21 ↗ — Annual price not verified Annual Unlimited compression and AI credits (including AI background removal and upscaling), 500 GB CDN/month; card displays USD 13.33/month equivalent. 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 recordOne-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 ↗ | TinyWow current PDF-specific and all-tool subscriptions; USD · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits Web free2026-10-20 ↗ Free Free Free No registration; free PDF tools are available, but exact daily allowances are not listed. PDF Unlimited2026-10-20 ↗ USD 9/month USD 72/year Monthly 45+ PDF tools, unlimited PDF use, no daily limits or ads Annual 45+ PDF tools, unlimited PDF use, no daily limits or ads TinyWow Unlimited2026-10-20 ↗ USD 20/month USD 180/year Monthly All PDF/image/writing/video/file tools; no ads or captcha Annual All PDF/image/writing/video/file tools; no ads or captcha 5 plan / billing-period records, all listed; — means that period is not recorded. 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. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancellation and refund terms follow official checkout and help policies. Official feature and pricing page ↗ · 2026-10-20 Capture 1 ↗ 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 | Up to 50 files per batch and 10 MB per file without login; free access to Lossy, Glossy, and Lossless modes | Free unlimited usage without login; optional paid supporter plan removes ads and CAPTCHAs |
| Cancellation & refunds | One-time credit packs never expire; subscriptions can be cancelled anytime in the account dashboard under official Terms. | Cancellation and refund terms follow official checkout and help policies. |
| Disclosure of costs & limits | Discloses 'maximum 10Mb. Login to remove the restriction.' upfront below the dropzone | Clearly displays exact before/after file sizes (4.04 MB -> 3.66 MB, -9%) on the result screen |
| Task quality | ||
| Measured fixture results | File reduction: 67.54% · Output size: 1343 KB | File reduction: 9.52% · Output size: 3744 KB |
| Fixture findings | Offers three modes without login; the default reduced this fixture by about 68%, with quality trade-offs to inspect. | Default PNG preserved quality but reduced this fixture by only about 10%; other export formats are available. |
| Original historical observation | 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. | At its default Quality = 90% setting while keeping PNG format, TinyWow applies conservative quantization that preserves near-lossless pixel fidelity (PSNR 48.20 dB, SSIM 0.9996) with a modest -9.52% byte reduction; switching the output dropdown to .webp or .avif yields much larger savings. |
| Suitable uses · historical assessment | Webmasters and designers who want an ad-free workspace with free access to Lossy, Glossy (photographer-grade), and Lossless modes | Users wanting free no-login near-lossless PNG optimization (48.20 dB PSNR) or one-click conversion to WebP/AVIF/JXL |
| Result & output evidence | No native output obtained; the preview does not establish final export quality. | |
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 2048 × 2048 (3,744.0 KB PNG, -9.52%) · Historical description; output not attached · Check watermark record No native output is attached; check the evidence for specification and watermark claims. |
| Historical specification note · not an official maximum | 2048×2048 full-resolution PNG free direct export (up to 10 MB and 50 files without login) | 2048×2048 (Original Resolution Preserved) |
| Watermark observation | Watermark-free | Watermark-Free |
| Batch & API | Supports up to 50 files per batch on web, plus WordPress plugins and REST API | Supports multi-file upload, live Before/After slider, and format conversion |
| Recorded free-tier dimensions | 2048 × 2048 | Not verified |
| Attached file dimensions | 2048 × 2048 · PNG | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 9.8s · End-to-end reference: 12.2s | Network-observed server wait: 8.5s · End-to-end reference: 12s |
| 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 | No login required (free account login removes the 10 MB per-file cap) | No login required (Cloudflare Turnstile check) |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | 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). | Provides a built-in Before/After visual comparison slider, an adjustable Quality slider (default 90%), and optional one-click conversion to .webp, .avif, or .jxl. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | ShortPixel (ID Scout SRL) | Box20 Media LLC (United States) |
| Recorded origin | Bucharest, Romania (EU GDPR compliant) | United States |
| Domain history record | 2014–Present (12-year image optimization specialist) | 2021–Present |
| Background & reputation assessment | Operated by ShortPixel (ID Scout SRL, founded in 2014), one of the most widely installed image optimization providers in the WordPress ecosystem. | Operated by US-based Box20 Media LLC, a popular multi-category free web utility platform. |
| 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 | Processes images via ShortPixel's GDPR-compliant European cloud cluster without requiring personal details for guests. | States that all uploaded and processed files are automatically deleted from servers 1 hour after processing. |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Claims deletion within 1 hours; deletion not independently verified |
| Evaluation 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). | 31 / 35 Completely free with no account registration required (01_landing.png); after a single Cloudflare Turnstile check, it compresses our 4.04 MiB PNG and provides an immediate direct download (02_result.png, 03_download.png). |
| 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). | 23.5 / 30 Provides a built-in Before/After visual comparison slider, an adjustable Quality slider (default 90%), and optional one-click conversion to .webp, .avif, or .jxl. |
| 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. | 18 / 20 Operated by US-based Box20 Media LLC, a popular multi-category free web utility platform. |
| Engineering & privacy | 14 / 15 Processes images via ShortPixel's GDPR-compliant European cloud cluster without requiring personal details for guests. | 13.5 / 15 States that all uploaded and processed files are automatically deleted from servers 1 hour after processing. |
| 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) | 50.5 / 65 Size Reduction: -9.52% (4,137.9 KB → 3,744.0 KB, 1.11× ratio) · PSNR: 48.20 dB · SSIM: 0.9996 (49.2/65) |
| Deliverable specifications | 19 / 20 Preserves full 2048×2048 resolution and native PNG format while offering free Lossy/Glossy/Lossless mode switching (19.0/20) | 19.5 / 20 Preserves the full 2048×2048 resolution without watermarks and offers optional .webp/.avif/.jxl export (20.0/20) |
| Processing speed | 11 / 15 Cloud SmartCompress processing takes ~9.8s (~12.2s end-to-end) (11.0/15) | 10.5 / 15 Completes cloud PNG compression in ~5.8s after Turnstile verification (12.8/15) |
