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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 | picresize.com | DupliChecker | Switch / compare |
|---|---|---|---|
| Image compression | 95/100 JPEG · Output attached | 90/100 2048 × 2048 · PNG | Active task |
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Browse this task →| Criterion | 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 | DupliChecker Image Compressor Image compression 90/100 Seven-aspect task score Upfront free limits and login-free batch downloads accompany roughly halved PNG size; each image is capped at 5MB amid many ads and tool links. Tested export 2048 × 2048 · PNG Historical test · 2026-10-19 |
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| Pricing & rules | ||
| Pricing plans | 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 ↗ | DupliChecker online Image Compressor tool (excludes separate Plagiarism, Paraphrasing, and Reverse Image Search plans) · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Image Compressor Free2026-10-21 ↗ Free Free Free Free without login; up to 10 images per batch, max 5 MB each (JPG/JPEG/PNG). 1 plan / billing-period records, all listed; — means that period is not recorded. The Image Compressor page explicitly states "100% Free" and supports up to 10 images per batch at max 5 MB each (JPG/JPEG/PNG) without login. Site-wide Pricing links cover Plagiarism, Paraphrasing, and Reverse Image Search quotas; image compression requires no subscription. Cancellation, sources & verification recordThe Image Compressor tool is free to use and involves no subscription charges. DupliChecker official online Image Compressor page ↗ · 2026-10-21 Capture 1 ↗ |
| Free & trial allowance on the test date | Completely free and unlimited usage with 20-minute temporary direct download link | Free guests can upload up to 10 images per batch, max 5 MB per image |
| Cancellation & refunds | Not verified | The Image Compressor tool is free to use and involves no subscription charges. |
| Disclosure of costs & limits | Results page clearly displays before-and-after resolution and file size | 'Upload Up to 10 images, max 5MB each' is printed directly inside the upload box |
| Task quality | ||
| Measured fixture results | File reduction: 84.38% · Output size: 646.3 KB | File reduction: 53.34% · Output size: 1930.7 KB |
| Fixture findings | 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. | Reduced this fixture by about 53% without login or a watermark; the page contains many surrounding links. |
| Original historical observation | 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. | While DupliChecker's page has many SEO cross-links, its core compression pipeline is solid: shrinking our 4.14 MB anchor PNG by 53.34% to 1.89 MB at PSNR=39.54 dB and SSIM=0.9985 with no login required (02_workspace.png, 03_download.png). |
| Suitable uses · historical assessment | Users and webmasters needing quick, signup-free image compression with extreme quality retention (PSNR > 46 dB) | Users who want quick no-login compression for PNG/JPEG files under 5 MB with manual quality slider control |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | JPEG · Output attached · No watermark in test | 2048 × 2048 · PNG · No watermark in test |
| Historical specification note · not an official maximum | 2048 × 2048 (646.3 KB original JPG) | 2048×2048 (native resolution watermark-free PNG direct export) |
| Watermark observation | Completely watermark-free | Watermark-free |
| Batch & API | Crop, rotate, filters, batch resizing, and multi-format conversion | Supports 10-image batch upload and one-click Download All |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | Not verified | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 2.5s · End-to-end reference: 3.5s | Network-observed server wait: 5.4s · End-to-end reference: 7.6s |
| Date & fixture | 2026-11-03 · 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 | Completely usable without login | No login required |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Not verified | Supports no-login single or Download All batch export, though the surrounding page layout is cluttered with internal SEO tool links and ad slots. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Internich LLC | DupliChecker (duplichecker.com) |
| Recorded origin | United States | Multi-Tool Web Portal |
| Domain history record | Established in 2005 | 2006–Present (20-year utility portal) |
| Background & reputation assessment | Not verified | Long-standing SEO and text/image utility portal (duplichecker.com) operating since 2006. |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Google Analytics · Google AdSense | Not verified |
| Engineering & privacy assessment | Not verified | Delivers compressed outputs via temporary AWS S3 buckets (temp-ca.s3.amazonaws.com) and states that temporary files are automatically purged. |
| Retention statement | Claims deletion within 20 minutes; deletion not independently verified | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 31 / 35 Clearly states free tier limits inside the dropzone ('Upload Up to 10 images, max 5MB each.', 01_landing.png); uploading our 4.14 MB anchor PNG and clicking Compress Image immediately reveals a free 'Save -53% (1.89 MB)' download button with zero paywalls (02_workspace.png, 03_download.png). | |
| Interaction restraint | 24.5 / 30 Supports no-login single or Download All batch export, though the surrounding page layout is cluttered with internal SEO tool links and ad slots. | |
| Background & reputation | 16.5 / 20 Long-standing SEO and text/image utility portal (duplichecker.com) operating since 2006. | |
| Engineering & privacy | 12.5 / 15 Delivers compressed outputs via temporary AWS S3 buckets (temp-ca.s3.amazonaws.com) and states that temporary files are automatically purged. | |
| Task quality | 63 / 65 Size Reduction: -84.38% (4137.9 KB → 646.3 KB, 6.4× ratio) · PSNR: 46.25 dB · SSIM: 0.9997 | 60.2 / 65 Preserves native 2048×2048 PNG format while reducing 4,137.9 KB to 1,930.7 KB (53.34% reduction, 2.14× ratio) with PSNR = 39.54 dB and SSIM = 0.9985 (60.2/65) |
| Deliverable specifications | 20 / 20 Clean unwatermarked export (8/8); Export spec: 2048 × 2048 (646.3 KB original JPG) | 20 / 20 100% preserves 2048×2048 pixel dimensions and native PNG format without watermarks or login (20.0/20) |
| Processing speed | 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) | 11.8 / 15 Cloud upload and AWS S3 compressed delivery complete in ~7.6s (~5.4s server processing) (11.8/15) |
