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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 | quickimagekit.com | Switch / compare |
|---|---|---|---|
| Image compression | 93/100 2048 × 2048 · PNG | 92/100 WEBP · 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 | QuickImageKit Image Compressor Image compression 92/100 Seven-aspect task score 100% free and local in-browser compression with zero cloud upload, shrinking our 4.14 MB anchor by 93.33% to 276 KB (37.75 dB PSNR) in 0.54s, though PNG inputs are converted to WebP as disclosed. Tested export WEBP · Output attached Historical test · 2026-10-26 |
|---|---|---|
| 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 ↗ | Quick Image Kit in-browser local image utilities; completely free · 2026-10-26 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free local web tool2026-10-26 ↗ Free Free Free Completely free without login; 100% local in-browser processing with quality slider and 50KB/100KB/200KB/500KB target-size presets, watermark-free export. PNG inputs are converted to WebP upon export (disclosed upfront as Format: PNG → WebP) 1 plan / billing-period records, all listed; — means that period is not recorded. The official page states that images are decoded and rendered locally in the browser without server uploads, with no paid subscriptions or credit packs; PNG inputs are exported as WebP. Cancellation, sources & verification recordCompletely free local utility with no accounts or paid subscriptions. Quick Image Kit official image compressor and privacy notice page ↗ · 2026-10-26 Capture 1 ↗ · Capture 2 ↗ |
| Free & trial allowance on the test date | Up to 20 images per day, max 5 MB per file on the free web tier | Unlimited free usage with multi-image drag-and-drop and ZIP batch download |
| 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 local utility with no accounts or paid subscriptions. |
| Disclosure of costs & limits | 5 MB and 20-image limits are printed directly inside the upload dropzone before file selection | Upfront disclosure on both landing page and workspace that PNG inputs convert to WebP |
| Task quality | ||
| Measured fixture results | File reduction: 57.73% · Output size: 1749 KB | File reduction: 93.33% · Output size: 276 KB |
| Fixture findings | Kept PNG format while reducing this fixture by about 58%; check free file-size and quantity limits. | Default Balanced mode converts the 4,137.9 KB anchor to a 276.0 KB WebP (-93.33%) with 37.75 dB PSNR and 0.9977 SSIM, keeping text and edges crisp. |
| 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). | Running 100% locally in the browser (0.0s upload, 0.54s end-to-end), QuickImageKit compressed our 4,137.9 KB (2048×2048) anchor PNG into a 276.0 KB WebP (-93.33%) at 37.75 dB PSNR and 0.9977 SSIM with sharp text and edges (02_workspace.png, 03_download.png). |
| 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) | Privacy-conscious web developers and creators who want zero cloud upload and >90% size reduction into modern WebP format |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | WEBP · Output attached · No watermark in test |
| Historical specification note · not an official maximum | 2048×2048 (native resolution preserved, watermark-free PNG) | 2048 × 2048 (Full-size watermark-free WebP) |
| Watermark observation | Watermark-free | Watermark-free |
| Batch & API | Supports 20-file batch drag-and-drop, Photoshop plugin, and official Tinify REST API | Supports multi-image drag-and-drop and batch ZIP download; no external REST API |
| 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: 0s · End-to-end reference: 0.54s |
| Date & fixture | 2026-10-18 · anchor_compress_v1 · US-West (California, AS2914) | 2026-10-26 · 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 | 100% login-free (no account system; pure local browser utility) |
| 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. | Zero registration prompts, ad overlays, or deceptive redirects; dropping an image immediately displays original size, compressed size, reduction percentage, and a direct download button. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Tinify B.V. / Voormedia B.V. | QuickImageKit (Independent Client-Side Toolkit) |
| Recorded origin | Amsterdam, Netherlands | Undisclosed jurisdiction (Cloudflare global edge) |
| Domain history record | 2012–Present (14-year PNG optimization benchmark) | 2026–Present |
| Background & reputation assessment | Developed and operated by Voormedia B.V. in Amsterdam, Netherlands since 2012—the global benchmark for smart PNG quantization. | Independent client-side browser image toolkit launched in 2026 with clear privacy documentation and contact channels, though without a disclosed corporate entity name. |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | On-device processing |
| Third-party tracking record | Not verified | Vercel Web Analytics (_vercel/insights) |
| Engineering & privacy assessment | HTTPS encrypted upload to api.tinify.com; temporary compressed files are automatically purged after a short window. | Verified via browser network monitoring: image compression runs 100% locally via Canvas / WebP encoding with zero bytes uploaded to any remote server (upload_s_net = 0s). |
| 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). | 35 / 35 100% free with no account registration, paywalls, or file-count caps; the landing page and workspace clearly disclose upfront that PNG inputs are converted to WebP for maximum compression (Format: PNG → WebP). Dropping our 4,137.9 KB (2048×2048) anchor PNG immediately enabled a free 276.0 KB download (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. | 29 / 30 Zero registration prompts, ad overlays, or deceptive redirects; dropping an image immediately displays original size, compressed size, reduction percentage, and a direct download button. |
| Background & reputation | 19.5 / 20 Developed and operated by Voormedia B.V. in Amsterdam, Netherlands since 2012—the global benchmark for smart PNG quantization. | 14.5 / 20 Independent client-side browser image toolkit launched in 2026 with clear privacy documentation and contact channels, though without a disclosed corporate entity name. |
| Engineering & privacy | 13 / 15 HTTPS encrypted upload to api.tinify.com; temporary compressed files are automatically purged after a short window. | 14.5 / 15 Verified via browser network monitoring: image compression runs 100% locally via Canvas / WebP encoding with zero bytes uploaded to any remote server (upload_s_net = 0s). |
| 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) | 59.5 / 65 In default Balanced mode, compresses the 4,137.9 KB (2048×2048) PNG anchor to a 276.0 KB WebP (-93.33%, 14.99× ratio) while achieving PSNR = 37.75 dB and SSIM = 0.9977 (59.5/65) |
| 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) | 17 / 20 Preserves 100% of the 2048×2048 pixel resolution with zero watermarks or login walls and supports multi-file ZIP export; 3 points deducted because PNG inputs are converted to WebP (explicitly disclosed as Format: PNG → WebP) rather than preserving a native PNG container (17.0/20) |
| Processing speed | 12.5 / 15 Server-side smart quantization on api.tinify.com completes in ~4.2s (13.0/15) | 15 / 15 100% client-side local browser encoding with 0.0s network upload or server wait, completing the 2048×2048 anchor in ~0.54s end-to-end (15.0/15) |
