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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 | JPEG-Optimizer | picresize.com | Switch / compare |
|---|---|---|---|
| Image compression | 95/100 2048 × 2048 · PNG | 95/100 JPEG · Output attached | Active task |
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Browse this task →| Criterion | JPEG-Optimizer (Browser-Local PNG/JPEG/GIF Compressor) Image compression 95/100 Seven-aspect task score Free login-free on-device processing supports target sizes, retaining full-size PNG with about 62% reduction in this run; display ads occupy the sidebar. Tested export 2048 × 2048 · PNG Historical test · 2026-10-19 | PicResize Image Compressor Image compression 95/100 Seven-aspect task score Pioneering web photo tool running for over 21 years, exporting 2048×2048 watermark-free compressed JPGs without login; slashes size by 84.4% while sustaining a remarkable 46.3 dB PSNR. Tested export JPEG · Output attached Historical test · 2026-11-03 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | JPEG-Optimizer in-browser bulk image compressor and resizer · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Completely Free Web2026-10-21 ↗ Free Free Free Completely free without login; up to 20 images at once processed locally in the browser for JPEG/PNG/GIF. 1 plan / billing-period records, all listed; — means that period is not recorded. The official page states "Completely Free. 20 images at once." and "Files are NEVER sent to the server, and all processing is handled via your own browser," supporting JPEG/PNG/GIF quality, max KB size, and max dimension settings. Cancellation, sources & verification recordCompletely free in-browser tool with no accounts or paid subscriptions. JPEG-Optimizer official page and privacy notice ↗ · 2026-10-21 Capture 1 ↗ | PicResize Regular free tier and Pro annual/lifetime plans · 2026-11-01 Plan · source date Monthly / one-time Annual bill / period Quota & limits Regular Free2026-11-01 ↗ Free Free Free Unlimited batch resizing, compression, and basic editing Batch resizing, file compression, cropping, and effects；Ad-supported, no AI enlarger；Free forever, no renewal；Perpetual access Pro Annual2026-11-01 ↗ — USD 60/year Annual Unlimited full access with zero ads AI lossless upscaling, batch crop, text/watermark, HEIC support, ad-free；Billed annually；Annual automatic renewal；1 year validity Pro Lifetime2026-11-01 ↗ USD 75 · one-time payment Usage / one-time Usage / one-time Lifetime unlimited full access with zero ads AI lossless upscaling, batch crop, text/watermark, HEIC support, lifetime ad-free；Single-account lifetime license；One-time payment, no renewal；Lifetime perpetual validity 3 plan / billing-period records, all listed; — means that period is not recorded. Regular version is free forever with ads; Pro version offers $60/year or $75 one-time lifetime payment for AI enlarging and ad-free experience. Cancellation, sources & verification recordCancellation and refund terms unverified PicResize Pro Official Pricing ↗ · 2026-11-01 Capture 1 ↗ |
| Free & trial allowance on the test date | 100% free with up to 20 images per batch and one-click ZIP download | Completely free and unlimited usage with 20-minute temporary direct download link |
| Cancellation & refunds | Completely free in-browser tool with no accounts or paid subscriptions. | Not verified |
| Disclosure of costs & limits | Free batch quota and browser-local privacy guarantee are disclosed upfront above the fold | Results page clearly displays before-and-after resolution and file size |
| Task quality | ||
| Measured fixture results | File reduction: 61.76% · Output size: 1582.4 KB | File reduction: 84.38% · Output size: 646.3 KB |
| Fixture findings | Local processing reduced this fixture by about 62%; other formats and images need separate tests. | Compresses 4.14 MB originals down to 646 KB at full 2048px resolution with near-flawless 0.9997 SSIM, delivering crisp edges and zero block artifacts. |
| Original historical observation | Despite its legacy 'JPEG-Optimizer' name, the tool fully supports client-side PNG, JPEG, and GIF compression. It shrinks our 4.14 MB anchor PNG by 61.76% to 1.55 MB locally in 1.4s with PSNR=39.35 dB and SSIM=0.9984 (02_workspace.png, 03_download.png). | PicResize exports 2048×2048 compressed JPG without login, reducing size by 84.38% (4.14 MB → 646 KB) while sustaining 46.25 dB PSNR and 0.9997 SSIM. |
| Suitable uses · historical assessment | Privacy-conscious users who strictly prohibit cloud uploads and need fast 20-image batch PNG/JPEG compression in the browser | Users and webmasters needing quick, signup-free image compression with extreme quality retention (PSNR > 46 dB) |
| 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 watermark-free PNG direct export) | 2048 × 2048 (646.3 KB original JPG) |
| Watermark observation | Watermark-free | Completely watermark-free |
| Batch & API | Supports 20-image batch local compression and ZIP archive export; no external API | Crop, rotate, filters, batch resizing, and multi-format conversion |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | 2048 × 2048 · PNG | Not verified |
| Speed & reliability | ||
| Timing observation | Recorded local processing time: 1.4s · End-to-end reference: 1.4s | Network-observed server wait: 2.5s · End-to-end reference: 3.5s |
| Date & fixture | 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914) | 2026-11-03 · 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 (no account system on site) | Completely usable without login |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | One-click quality slider, target max KB, and dimension controls without login; exports directly via a browser blob: URL with only standard sidebar display ads. | Not verified |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | JPEG-Optimizer (jpeg-optimizer.com) | Internich LLC |
| Recorded origin | Independent Web Utility | United States |
| Domain history record | 2010–Present (16-year established domain) | Established in 2005 |
| Background & reputation assessment | Long-running web image optimization utility (jpeg-optimizer.com) operating since 2010, modernized with a pure client-side browser processing pipeline. | Not verified |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | On-device processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | Google Analytics · Google AdSense |
| Engineering & privacy assessment | Explicitly promises and verified via network inspection: 'Privacy: Files are NEVER sent to the server, and all processing is handled via your own browser.' 100% client-side zero-upload execution. | Not verified |
| Retention statement | This flow runs locally; post-close deletion not independently verified | Claims deletion within 20 minutes; deletion not independently verified |
| Evaluation basis | ||
| Pricing transparency | 33.5 / 35 Clearly states 'Completely Free. 20 images at once.' on the landing page (01_landing.png) with zero paywalls, zero sign-up gates, and zero hidden limits; importing our 4.14 MB anchor PNG immediately generates a free local Download link and ZIP batch archive button (02_workspace.png, 03_download.png). | |
| Interaction restraint | 27.5 / 30 One-click quality slider, target max KB, and dimension controls without login; exports directly via a browser blob: URL with only standard sidebar display ads. | |
| Background & reputation | 18 / 20 Long-running web image optimization utility (jpeg-optimizer.com) operating since 2010, modernized with a pure client-side browser processing pipeline. | |
| Engineering & privacy | 15 / 15 Explicitly promises and verified via network inspection: 'Privacy: Files are NEVER sent to the server, and all processing is handled via your own browser.' 100% client-side zero-upload execution. | |
| Task quality | 61.2 / 65 Preserves native 2048×2048 PNG format at default 80% quality while shrinking 4,137.9 KB down to 1,582.4 KB (61.76% reduction, 2.61× ratio) with PSNR = 39.35 dB and SSIM = 0.9984 (61.2/65) | 63 / 65 Size Reduction: -84.38% (4137.9 KB → 646.3 KB, 6.4× ratio) · PSNR: 46.25 dB · SSIM: 0.9997 |
| Deliverable specifications | 20 / 20 100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20) | 20 / 20 Clean unwatermarked export (8/8); Export spec: 2048 × 2048 (646.3 KB original JPG) |
| Processing speed | 13.8 / 15 100% local browser computation (0s network upload), completing 4.14 MB PNG compression in ~1.4s (13.8/15) | 13.5 / 15 Network-observed server wait: 2.5s (API mode: cloud_server_pipeline; network upload 1s / end-to-end 3.5s shown for reference only, never penalized) |
