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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 | TinyPNG | tools.hellokeyboard.com | Switch / compare |
|---|---|---|---|
| Image compression | 93/100 2048 × 2048 · PNG | 92/100 JPEG · Output attached | Active task |
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Browse this task →| Criterion | TinyPNG Image compression 93/100 Seven-aspect task score Clear free allowances and login-free batch downloads balance PNG size and quality; the tested limits were 20 images at 5MB each, processed in the cloud. Tested export 2048 × 2048 · PNG Historical test · 2026-10-18 | Hello Keyboard Tools Image compression 92/100 Seven-aspect task score Hello Keyboard Tools is a free, login-free client-side image compressor that achieves an 85.99% volume reduction (4.14 MB to 580 KB) in only 250ms at default 80% quality, reaching 42.34 dB PSNR and 0.9992 SSIM with complete local privacy and instant turnaround; as it defaults to JPEG output, users requiring transparency for PNG inputs should select the WebP format. Tested export JPEG · Output attached Historical test · 2026-11-06 |
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| Pricing & rules | ||
| Pricing plans | TinyPNG online optimizer plans (Web Free / Web Pro / Web Ultra); USD · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Web Free2026-10-21 ↗ Free Free Free Free without login; up to 20 images per session (max 5 MB each) for AVIF/WebP/PNG/JPEG compression and 3 format conversions per session. Web Pro (Annual)2026-10-21 ↗ — Annual price not verified Annual Unlimited image compressions, up to 75 MB file size, folder upload, and ad-free; card displays USD 3.25/month equivalent ("Per month | Billed annually"). Pricing card displays only the USD 3.25/month equivalent ("Billed annually") without printing the annual invoice total on the public page. Web Ultra (Annual)2026-10-21 ↗ — Annual price not verified Annual Unlimited compressions and format conversions, up to 150 MB file size, fastest speed, and ad-free; card displays USD 12.42/month equivalent ("Per month | Billed annually"). Pricing card displays only the USD 12.42/month equivalent ("Billed annually") without printing the annual invoice total on the public page. 3 plan / billing-period records, all listed; — means that period is not recorded. The official /pricing/web page lists Web Free (USD 0, 20 images/session, max 5 MB/file, 3 format conversions/session), Web Pro (displayed as USD 3.25/month billed annually, unlimited compressions, max 75 MB/file), and Web Ultra (displayed as USD 12.42/month billed annually, unlimited compressions and conversions, max 150 MB/file). Because the Web Pro and Web Ultra cards display only rounded monthly equivalents ("Per month | Billed annually") without printing the annual invoice totals on the card, the annual totals are marked unverified. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCredit card subscriptions auto-renew annually (with email reminders 1 month and 1 week prior) and can be disabled anytime in the account dashboard; upgrading from Web Pro to Web Ultra refunds remaining Web Pro months. TinyPNG official website and Web subscription pricing page ↗ · 2026-10-21 Capture 1 ↗ · Capture 2 ↗ | Hello Keyboard Tools site-wide free utilities · 2026-11-06 Plan · source date Monthly / one-time Annual bill / period Quota & limits Web Free2026-11-06 ↗ Free Free Free Free use across all utilities without registration; supports up to 20 MB per file depending on the tool 1 plan / billing-period records, all listed; — means that period is not recorded. The official site declares tools are free to use, require no login, no subscription, with files primarily processed locally in the browser. Cancellation, sources & verification recordCompletely free utility suite; no subscription or cancellation required. Hello Keyboard Tools homepage declaration and tool directory ↗ · 2026-11-06 Capture 1 ↗ Hello Keyboard Tools privacy and processing policy ↗ · 2026-11-06 Capture 1 ↗ |
| Free & trial allowance on the test date | Up to 20 images per day, max 5 MB per file on the free web tier | Completely free, no quota limits, pure client-side single-image processing (up to 20 MB) |
| Cancellation & refunds | Credit card subscriptions auto-renew annually (with email reminders 1 month and 1 week prior) and can be disabled anytime in the account dashboard; upgrading from Web Pro to Web Ultra refunds remaining Web Pro months. | Completely free utility suite; no subscription or cancellation required. |
| Disclosure of costs & limits | 5 MB and 20-image limits are printed directly inside the upload dropzone before file selection | Page transparently outlines format choices and quality controls |
| Task quality | ||
| Measured fixture results | File reduction: 57.73% · Output size: 1749 KB | File reduction: 85.99% · Output size: 579.8 KB |
| Fixture findings | Kept PNG format while reducing this fixture by about 58%; check free file-size and quantity limits. | Under the 2048px standard anchor, Hello Keyboard Tools exports a 2048x2048 full-resolution native JPEG at default settings, achieving 42.34 dB PSNR, 0.9992 SSIM, and 85.99% file size reduction with pure client-side Canvas offline processing in 250ms. |
| Original historical observation | TinyPNG remains the gold standard for smart PNG quantization: without changing format or pixel dimensions (2048×2048), it cuts our 4.24 MB anchor PNG by 57.73% (1,749.0 KB) while achieving the highest fidelity in the category at PSNR=40.09 dB and SSIM=0.9987 (02_workspace.png, 03_download.png). | Hello Keyboard Tools uses client-side Canvas encoding to compress 4.14 MB down to 579.8 KB (-86.0%) at default 80% quality, achieving 42.34 dB PSNR and 0.9992 SSIM in only 250ms. |
| Suitable uses · historical assessment | Frontend developers, UI designers, and content editors who need to keep native PNG format (and alpha support) while cutting file weight by ~60% with virtually zero visual loss (PSNR > 40 dB) | Users needing fast local image compression without uploads, prioritizing privacy, and accepting JPEG/WebP formats |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | JPEG · Output attached · No watermark in test |
| Historical specification note · not an official maximum | 2048×2048 (native resolution preserved, watermark-free PNG) | 2048 × 2048 (preserving native dimensions) |
| Watermark observation | Watermark-free | No watermark |
| Batch & API | Supports 20-file batch drag-and-drop, Photoshop plugin, and official Tinify REST API | Interactive single-file processing, up to 20 MB per file |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | 2048 × 2048 · PNG | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 4.2s · End-to-end reference: 6.3s | Recorded local processing time: 0.25s · End-to-end reference: 0.25s |
| Date & fixture | 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914) | 2026-11-06 · 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 for free tier | All features available directly without registration or login |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | No forced sign-up modal, no countdown gates, and no watermark traps; clicking Download immediately exports the compressed PNG. | Not verified |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Tinify B.V. / Voormedia B.V. | Not verified |
| Recorded origin | Amsterdam, Netherlands | Not verified |
| Domain history record | 2012–Present (14-year PNG optimization benchmark) | Not verified |
| Background & reputation assessment | Developed and operated by Voormedia B.V. in Amsterdam, Netherlands since 2012—the global benchmark for smart PNG quantization. | Not verified |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | On-device processing |
| Third-party tracking record | Not verified | Google Analytics · Cloudflare Web Analytics |
| Engineering & privacy assessment | HTTPS encrypted upload to api.tinify.com; temporary compressed files are automatically purged after a short window. | Not verified |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | This flow runs locally; post-close deletion not independently verified |
| Evaluation basis | ||
| Pricing transparency | 33 / 35 Clearly states free tier limits on the upload dropzone ('Up to 20 images, max 5 MB each'). Uploading the 4.24 MB (2048×2048) anchor PNG requires no login and immediately provides a free download button (01_landing.png, 02_workspace.png, 03_download.png). | |
| Interaction restraint | 27.5 / 30 No forced sign-up modal, no countdown gates, and no watermark traps; clicking Download immediately exports the compressed PNG. | |
| Background & reputation | 19.5 / 20 Developed and operated by Voormedia B.V. in Amsterdam, Netherlands since 2012—the global benchmark for smart PNG quantization. | |
| Engineering & privacy | 13 / 15 HTTPS encrypted upload to api.tinify.com; temporary compressed files are automatically purged after a short window. | |
| Task quality | 61.1 / 65 Preserves native PNG format and 2048×2048 dimensions while shrinking 4,137.9 KB to 1,749.0 KB (-57.73%, 2.37× ratio) with industry-leading PSNR = 40.09 dB and SSIM = 0.9987 (59.9/65) | 58 / 65 Size Reduction: -85.99% (4137.9 KB → 579.8 KB, 7.14× ratio) · PSNR: 42.34 dB · SSIM: 0.9992 |
| Deliverable specifications | 20 / 20 Exports a watermark-free 2048×2048 PNG without login (capped at 5 MB per file and 20 files/day on the free tier) (19.0/20) | 18 / 20 Watermarked or blocked free export (0/8); Export spec: 2048 × 2048 (preserving native dimensions) |
| Processing speed | 12.5 / 15 Server-side smart quantization on api.tinify.com completes in ~4.2s (13.0/15) | 15 / 15 Network-observed server wait: 0.25s (API mode: client_side; network upload 0s / end-to-end 0.25s shown for reference only, never penalized) |
