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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 | DupliChecker | everytool4u.com | Switch / compare |
|---|---|---|---|
| Background removal | Not tested in topic | 73/100 1600 × 1600 · PNG | Compare in task topic → |
| Image compression | 90/100 2048 × 2048 · PNG | 80/100 2048 × 2048 · PNG | Active task |
| PDF to Word | Not tested in topic | 81/100 DOCX · Output attached | Compare in task topic → |
| PDF compression | Not tested in topic | 81/100 PDF · Output attached | Compare in task topic → |
| Scanned PDF OCR | Not tested in topic | 96/100 PDF · Output attached | Compare in task topic → |
| PDF merge & split | Not tested in topic | 97/100 PDF · Output attached | Compare in task topic → |
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Browse this task →| Criterion | 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 | EveryTool4U Image compression 80/100 Seven-aspect task score EveryTool4U strictly maintains a lossless PNG preservation policy in the 4.14 MB PNG benchmark, processing locally in 1.15 seconds with instant export. The image retains 100% bit-level fidelity (PSNR = 99.99 dB, SSIM = 1.0) with 0.0% size reduction on this pre-optimized anchor. With zero logins, zero uploads, and no watermarks, it caters to users prioritizing absolute fidelity and privacy. Tested export 2048 × 2048 · PNG Historical test · 2026-11-05 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | 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 ↗ | EveryTool4U platform tool authorization and service pricing · 2026-11-01 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Tier2026-11-01 ↗ Free Free Free Unlimited usage across 109 online tools with no daily quota or queue limits Includes PDF merge, split, compression, Word conversion, OCR, image compression, background removal, and office utilities；Client-side processing; performance on large files depends on local device RAM and browser limits；No account registration or renewal required；Permanent access 1 plan / billing-period records, all listed; — means that period is not recorded. All tools are completely free indefinitely without registration or subscriptions; most tasks execute entirely on-device. Cancellation, sources & verification recordCancellation and refund terms unverified EveryTool4U Official Homepage ↗ · 2026-11-01 Capture 1 ↗ EveryTool4U About and Privacy Architecture Page ↗ · 2026-11-01 Capture 1 ↗ |
| Free & trial allowance on the test date | Free guests can upload up to 10 images per batch, max 5 MB per image | Completely free across all features with zero file count limits |
| Cancellation & refunds | The Image Compressor tool is free to use and involves no subscription charges. | Not verified |
| Disclosure of costs & limits | 'Upload Up to 10 images, max 5MB each' is printed directly inside the upload box | Upload immediately displays size estimation and transparently reports saved bytes and download options post-compression |
| Task quality | ||
| Measured fixture results | File reduction: 53.34% · Output size: 1930.7 KB | File reduction: 0% · Output size: 4137.9 KB |
| Fixture findings | Reduced this fixture by about 53% without login or a watermark; the page contains many surrounding links. | Strict lossless PNG policy with PSNR 99.99 dB and SSIM 1.0, preserving bit-level fidelity with zero quality degradation. |
| Original historical observation | 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). | EveryTool4U processed locally in 1.15s, adopting a lossless fidelity approach for PNGs (02_result.png, 03_download.png). |
| Suitable uses · historical assessment | Users who want quick no-login compression for PNG/JPEG files under 5 MB with manual quality slider control | Privacy-sensitive users wanting fast compression for JPG/WebP while guaranteeing zero degradation for PNGs |
| 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) | 2048x2048 native PNG (4,137.9 KB · 100% lossless fidelity) |
| Watermark observation | Watermark-free | No watermark |
| Batch & API | Supports 10-image batch upload and one-click Download All | Supports single and batch image compression |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | 2048 × 2048 · PNG | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 5.4s · End-to-end reference: 7.6s | Recorded local processing time: 0s · End-to-end reference: 1.15s |
| Date & fixture | 2026-10-19 · anchor_compress_v1 · US-West (California, AS2914) | 2026-11-05 · anchor_compress_v1 · Client-Side (Canvas / Browser Local) |
| 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 login required, direct local compress and export |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Supports no-login single or Download All batch export, though the surrounding page layout is cluttered with internal SEO tool links and ad slots. | Not verified |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | DupliChecker (duplichecker.com) | EveryTool4U |
| Recorded origin | Multi-Tool Web Portal | Not verified |
| Domain history record | 2006–Present (20-year utility portal) | Not verified |
| Background & reputation assessment | Long-standing SEO and text/image utility portal (duplichecker.com) operating since 2006. | 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 AdSense · Google Tag Manager |
| Engineering & privacy assessment | Delivers compressed outputs via temporary AWS S3 buckets (temp-ca.s3.amazonaws.com) and states that temporary files are automatically purged. | 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 | 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 | 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) | 40 / 65 Size Reduction: -0% (4137.9 KB → 4137.9 KB, 1× ratio) · PSNR: 99.99 dB · SSIM: 1 |
| 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: 2048x2048 native PNG (4,137.9 KB · 100% lossless fidelity) |
| Processing speed | 11.8 / 15 Cloud upload and AWS S3 compressed delivery complete in ~7.6s (~5.4s server processing) (11.8/15) | 15 / 15 Network-observed server wait: 0s (API mode: client_side_canvas_browser; network upload 0s / end-to-end 1.15s shown for reference only, never penalized) |
