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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 | rotato.app | aconvert.com | Switch / compare |
|---|---|---|---|
| Image compression | Not tested in topic | 86/100 2048 × 2048 · PNG | Compare in task topic → |
| PDF to Word | Not tested in topic | 79/100 DOCX · Output attached | Compare in task topic → |
| PDF compression | Not tested in topic | 96/100 PDF · Output attached | Compare in task topic → |
| Video compression | 98/100 MP4 · Output attached | 85/100 MP4 · Output attached | Active task |
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Browse this task →| Criterion | Rotato Video compression 98/100 Seven-aspect task score Rotato Web Video Compressor executes 100% client-side via WebCodecs and WebAssembly with zero cloud byte uploads, reducing a 3.97 MB 1080p video by 68.09% to 1.27 MB in just 3.2s while preserving full 1920×1080 resolution, audio track, and watermark-free export, earning an overall score of 98. Tested export MP4 · Output attached Historical test · 2026-11-03 | Aconvert Video compression 85/100 Seven-aspect task score Aconvert achieved a 40.54% size reduction on the 3.97MB 1080p master video down to 2.36 MB (1.68x ratio) without an account, fully preserving 1920x1080 resolution and original audio; with a 47.50s server turnaround and zero watermarks, it proves to be an honest and dependable free video compressor. Tested export MP4 · Output attached Historical test · 2026-11-05 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | Rotato free trial and lifetime one-time licensing plans · 2026-10-30 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Trial2026-10-30 ↗ Free Free Free Explore 3D camera controls, animation presets, and live Metal rendering Full UI drag-and-drop import and real-time animation playback；Exported images and video renders include Rotato watermark Basic (One-time)2026-10-30 ↗ USD 79 · one-time payment Usage / one-time Usage / one-time One-time payment for lifetime use, all phone mockups, 6 months free updates Watermark-free 4K export, ProRes4444/H.265 exports, clay mode, multiple shadows Standard (One-time)2026-10-30 ↗ USD 89 · one-time payment Usage / one-time Usage / one-time One-time payment for lifetime use, all 30+ device models, 12 months free updates Multi-device scenes, 8K supersampling export, 18 premium video templates, Figma plugin Premium (One-time)2026-10-30 ↗ USD 199 · one-time payment Usage / one-time Usage / one-time One-time payment for lifetime use, all 30+ devices, 100 premium video templates, 12mo updates All video template packs (multi-device, web scroll), 2 website templates, path tracing 4 plan / billing-period records, all listed; — means that period is not recorded. Free trial provides unlimited live rendering (watermarked exports); paid editions are one-time lifetime licenses: Basic ($79 one-time, phones only), Standard ($89 one-time, 30+ devices, 1yr updates), and Premium ($199 one-time, 100+ templates). Cancellation, sources & verification recordCancellation and refund terms unverified Rotato Official Pricing Page ↗ · 2026-10-30 Capture 1 ↗ | Aconvert 100% free file conversion and compression service · 2026-11-01 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-11-01 ↗ Free Free Free 100% free without login, 40MB per file, up to 10 files per batch Full access to multi-format conversion and compression across documents, media, eBooks, and archives；40MB per-file limit, 10 files per batch, display ads present；Permanently free, no renewal；Perpetual access 1 plan / billing-period records, all listed; — means that period is not recorded. All conversion and compression features are 100% free with ad and voluntary donation support; 40MB per-file limit (up to 10 files per batch) with zero paid plans or paywalls. Cancellation, sources & verification recordCancellation and refund terms unverified Aconvert Official Homepage ↗ · 2026-11-01 Capture 1 ↗ Aconvert About and Free Model ↗ · 2026-11-01 Capture 1 ↗ |
| Free & trial allowance on the test date | Not verified | Entirely free with 200MB per video limit and up to 10 files per batch |
| Cancellation & refunds | Not verified | Not verified |
| Disclosure of costs & limits | Not verified | Direct result table with download and delete actions after conversion |
| Task quality | ||
| Measured fixture results | Size reduction: -68.09% · Duration retention: 100% · Video duration: 10.01s · 1080p preserved: Pass | Size reduction: -40.54% · Duration retention: 100% · Video duration: 10.01s · 1080p preserved: Pass |
| Fixture findings | Client-side WASM compression reduced file size by 68.09% while fully preserving 1920×1080 resolution, audio track, and 10.01s duration with watermark-free MP4 export. | 40.54% size reduction (3.97 MB → 2.36 MB), 100% resolution and audio retention, 47.50s server processing, free guest export of 1080p MP4 without watermarks. |
| Original historical observation | Uploaded 1080p 30fps anchor video (anchor_videocompress_v1, 3.97 MB) to Rotato video compressor (tools.rotato.app/compress); compressed locally in-browser via WebCodecs/WASM in 3.2s, reducing size by 68.09% to 1.27 MB, preserving audio track and 1080p resolution with native watermark-free MP4 export (01_landing.png, 02_result.png). | Aconvert compressed the 3.97 MB test video down to 2.36 MB (40.54% reduction) under default bitrate settings while preserving 1080p resolution and sound (02_result.png, 03_download.png). |
| Suitable uses · historical assessment | Not verified | Users needing fast video compression without account creation while keeping 1080p resolution and original audio |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | MP4 · Output attached · Check watermark record | MP4 · Output attached · No watermark in test |
| Historical specification note · not an official maximum | 1920×1080 (1080p H.264 MP4 native export, watermark-free) | 1920x1080 (1080p H.264 MP4 native export without watermark) |
| Watermark observation | Not verified | No watermark |
| Batch & API | Not verified | Supports up to 10 files per batch; 200MB per-file limit |
| Recorded free-tier dimensions | Not verified | 1920 × 1080 |
| Attached file dimensions | Not verified | Not verified |
| Speed & reliability | ||
| Timing observation | Recorded local processing time: 0s · End-to-end reference: 3.2s | Network-observed server wait: 47.5s · End-to-end reference: 50.5s |
| Date & fixture | 2026-11-03 · anchor_videocompress_v1 · US-West (California, AS2914) | 2026-11-05 · anchor_videocompress_v1 · US-West (California) |
| 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 | Not verified | No login in this test |
| Sign-in methods | No login required for web tool | 100% guest access without account |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Not verified | Not verified |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Rotato / Morten Just | Aconvert Project (PDFConvertOnline.com) |
| Recorded origin | Copenhagen, Denmark / US | United States |
| Domain history record | Founded in 2018 | Development team active since 2000; Aconvert extended operations |
| Background & reputation assessment | Not verified | Not verified |
| External reputation record | Celebrated 3D mockup and animation tool created by former Google interaction designer Morten Just. | Long-running conversion service with over 530 million files converted, transparent server infrastructure disclosure, and multi-language support. |
| Engineering & privacy | ||
| Processing location | On-device processing | Uploaded for cloud processing |
| Third-party tracking record | Google Tag Manager | Google AdSense · Google Analytics |
| Engineering & privacy assessment | Not verified | Not verified |
| Retention statement | This flow runs locally; post-close deletion not independently verified | Claims deletion within 2 hours; deletion not independently verified |
| Evaluation basis | ||
| Pricing transparency | ||
| Interaction restraint | ||
| Background & reputation | ||
| Engineering & privacy | ||
| Task quality | 64 / 65 Size Reduction: -68.09% (3.97 MB → 1.27 MB, 3.13× ratio) · Duration Retained: 100% (10.01s) · 1080p Resolution Preserved: Yes | 54.8 / 65 Size Reduction: -40.54% (3.97 MB → 2.36 MB, 1.68× ratio) · Duration Retained: 100% (10.01s) · 1080p Resolution Preserved: Yes |
| Deliverable specifications | 20 / 20 Watermarked or blocked free export (0/8); Export spec: 1920×1080 (1080p H.264 MP4 native export, watermark-free) | 20 / 20 Clean unwatermarked export (8/8); Export spec: 1920x1080 (1080p H.264 MP4 native export without watermark) |
| Processing speed | 15 / 15 Network-observed server wait: 0s (API mode: client_wasm; network upload 0s / end-to-end 3.2s shown for reference only, never penalized) | 8 / 15 Network-observed server wait: 47.5s (API mode: cloud_aconvert_video_compress; network upload 3s / end-to-end 50.5s shown for reference only, never penalized) |
