See your options side by side
Choose one task and 2–4 tools. Compare pricing, output, test results and trust.
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 | ShortPixel | Switch / compare |
|---|---|---|---|
| Image compression | 95/100 2048 × 2048 · PNG | 86/100 2048 × 2048 · PNG | Active task |
Select at least 2 tools to compare
You can also filter a task page first, then compare your shortlist.
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 | 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 |
|---|---|---|
| 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 ↗ | 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 ↗ |
| Free & trial allowance on the test date | 100% free with up to 20 images per batch and one-click ZIP download | Up to 50 files per batch and 10 MB per file without login; free access to Lossy, Glossy, and Lossless modes |
| Cancellation & refunds | Completely free in-browser tool with no accounts or paid subscriptions. | One-time credit packs never expire; subscriptions can be cancelled anytime in the account dashboard under official Terms. |
| Disclosure of costs & limits | Free batch quota and browser-local privacy guarantee are disclosed upfront above the fold | Discloses 'maximum 10Mb. Login to remove the restriction.' upfront below the dropzone |
| Task quality | ||
| Measured fixture results | File reduction: 61.76% · Output size: 1582.4 KB | File reduction: 67.54% · Output size: 1343 KB |
| Fixture findings | Local processing reduced this fixture by about 62%; other formats and images need separate tests. | Offers three modes without login; the default reduced this fixture by about 68%, with quality trade-offs to inspect. |
| 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). | 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. |
| Suitable uses · historical assessment | Privacy-conscious users who strictly prohibit cloud uploads and need fast 20-image batch PNG/JPEG compression in the browser | Webmasters and designers who want an ad-free workspace with free access to Lossy, Glossy (photographer-grade), and Lossless modes |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 2048 × 2048 · PNG · No watermark in test |
| Historical specification note · not an official maximum | 2048×2048 (native resolution watermark-free PNG direct export) | 2048×2048 full-resolution PNG free direct export (up to 10 MB and 50 files without login) |
| Watermark observation | Watermark-free | Watermark-free |
| Batch & API | Supports 20-image batch local compression and ZIP archive export; no external API | Supports up to 50 files per batch on web, plus WordPress plugins and REST API |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | 2048 × 2048 · PNG | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Recorded local processing time: 1.4s · End-to-end reference: 1.4s | Network-observed server wait: 9.8s · End-to-end reference: 12.2s |
| Date & fixture | 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914) | 2026-10-18 · 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) | No login required (free account login removes the 10 MB per-file cap) |
| 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. | 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). |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | JPEG-Optimizer (jpeg-optimizer.com) | ShortPixel (ID Scout SRL) |
| Recorded origin | Independent Web Utility | Bucharest, Romania (EU GDPR compliant) |
| Domain history record | 2010–Present (16-year established domain) | 2014–Present (12-year image optimization specialist) |
| Background & reputation assessment | Long-running web image optimization utility (jpeg-optimizer.com) operating since 2010, modernized with a pure client-side browser processing pipeline. | Operated by ShortPixel (ID Scout SRL, founded in 2014), one of the most widely installed image optimization providers in the WordPress ecosystem. |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | On-device processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | Not verified |
| 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. | Processes images via ShortPixel's GDPR-compliant European cloud cluster without requiring personal details for guests. |
| Retention statement | This flow runs locally; post-close deletion not independently verified | Explicit retention period unconfirmed; inspect policy record |
| 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). | 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). |
| 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. | 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). |
| 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. | 18 / 20 Operated by ShortPixel (ID Scout SRL, founded in 2014), one of the most widely installed image optimization providers in the WordPress ecosystem. |
| 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. | 14 / 15 Processes images via ShortPixel's GDPR-compliant European cloud cluster without requiring personal details for guests. |
| 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) | 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) |
| Deliverable specifications | 20 / 20 100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20) | 19 / 20 Preserves full 2048×2048 resolution and native PNG format while offering free Lossy/Glossy/Lossless mode switching (19.0/20) |
| Processing speed | 13.8 / 15 100% local browser computation (0s network upload), completing 4.14 MB PNG compression in ~1.4s (13.8/15) | 11 / 15 Cloud SmartCompress processing takes ~9.8s (~12.2s end-to-end) (11.0/15) |
