Voysum · Video compression
Voysum excelled in the 3.97 MB 1080p video compression benchmark, utilizing pure browser WebAssembly to shrink file size to 0.61 MB (an 84.76% reduction) in 24.2 seconds. Full 10-second duration and audio tracks were 100% preserved with zero uploads, no login, and no watermarks, offering both excellent compression efficiency and strict privacy.
Client-Side (WASM / Browser Local)
MP4 · Output attached · Open native file ↗
Subsequent pricing and service checks are shown separately without altering historical scores.
One run does not establish all complex scenes, untested paid maxima or long-term uptime.
Plans & historical pricing
Official web personal free tier, monthly and annual subscription tiers; on-device utilities 100% free · 2026-11-05
Cloud speech-to-text, editable transcripts, TXT and subtitle exports；Up to 3 tasks per day, account required, max 30 min and 100 MB per file
All Free features, editable transcripts, TXT/SRT/VTT/CSV exports, private processing
All Starter features, 5x monthly minutes, Stripe billing portal access
All Starter features, TXT/SRT/VTT/CSV exports, private processing；$70/year billed annually, equivalent to $5.83/month
All Pro features, 6,000 min/mo, Stripe billing portal；$180/year billed annually, equivalent to $15.00/month
5 plan / billing-period records, all listed; — means that period is not recorded.
Free tier provides 120 min/month without credit card, up to 3 files/day, 30 min/100 MB per file. Starter costs $7/month or $70/year ($5.83/mo equivalent); Pro costs $18/month or $180/year ($15.00/mo equivalent). Stripe securely handles checkout.
Cancellation, sources & verification record
Cancellation and refund terms unverified
Voysum Official Homepage ↗ · 2026-11-05 Capture 1 ↗
Voysum Official Pricing ↗ · 2026-11-05 Capture 1 ↗ · Capture 2 ↗
Pricing recorded on the test date · 2026-11-05
Completely Free
100% Free with no login (free browser tool)
Historical context only; not current purchase guidance.
Delivery & access
- Free delivery record
- 1280x720 (0.61 MB H.264 MP4 · zero watermark)
- Watermark
- No watermark
- Free allowance
- Local utility is completely free with no usage quotas
- Account requirements
- Direct use with zero login or sign-up
- Maximum specification record
- 1280x720 (0.61 MB H.264 MP4 · zero watermark)
May include advertised capabilities; this does not establish a tested paid tier.
- Batch & API
- Single-video interactive settings with one-click local conversion
- Manual refinement
- Not recorded or not verified
Tested result & sample
Voysum compressed 3.97 MB video to 0.61 MB in 24.2s locally via WebAssembly with crisp visuals and zero watermarks (02_result.png, 03_download.png).
- Fixture
- anchor_videocompress_v1
- Recorded environment
- Client-Side (WASM / Browser Local)
- Local processing record
- 0 s
- End-to-end reference
- 24.2 s
Network wait includes round trips, queuing and polling error, not pure inference time. Local timings depend on the device; repetition counts are not standardized in legacy records.
Experience, rules & trust
- Disclosure
- Immediately inspects video metadata and presents settings with local conversion trigger
- Interaction
- Not recorded or not verified
- Entity record
- Voysum Team
- Origin
- Not recorded or not verified
- Domain history record
- Not recorded or not verified
- Third-party tracking record
- No third-party services listed in this record; this is not proof that none exist.
- External information
- Not recorded or not verified
- Processing
- Browser WebAssembly pure client-side processing
- Retention statement
- Video exists only in browser memory and is discarded upon tab closure, zero server retention
A recorded statement does not verify deletion or all data-processing behavior.
Verifiable audit trail & evidence
Four SHA-256-verified stages link the benchmark fixture, same-run interface screenshots, native exported artifact and archived pricing sources.
anchor_videocompress_v1 · Inspect fixture & file inspector →
Captures entry rules, result view and export disclosure.
Voysum Official Homepage (snapshot ↗) · Voysum Official Pricing (snapshot ↗)
Screenshots, native output and official claims support different conclusions. Evidence grades are not product safety certifications.
Evaluation basis & full scores · Overall 92.8/100
Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.
Scoring version 2.3.1 · Test fixture anchor_videocompress_v1
Honesty & reputation · 90/100 · 30%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Pricing transparency | 33 / 35 | Explanation unavailable | Evidence A → |
| Interaction restraint | 29 / 30 | Explanation unavailable | Evidence A → |
| Background & reputation | 13 / 20 | Explanation unavailable | Evidence A → |
| Engineering & privacy | 15 / 15 | Explanation unavailable | Evidence A → |
Capability · 94/100 · 70%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Task quality | 62 / 65 | Size Reduction: -84.76% (3.97 MB → 0.61 MB, 6.56× ratio) · Duration Retained: 100% (10.01s) · 1080p Resolution Preserved: Yes | Evidence A → |
| Deliverable specifications | 20 / 20 | Clean unwatermarked export (8/8); Export spec: 1280x720 (0.61 MB H.264 MP4 · zero watermark) | Evidence A → |
| Processing speed | 12 / 15 | Network-observed server wait: 0s (API mode: client_side_wasm_ffmpeg; network upload 0s / end-to-end 24.2s shown for reference only, never penalized) | Evidence A → |
Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.
Revisions & corrections
Completed Voysum client-side video compression (video-compressor) same-anchor native benchmark and objective metric evaluation.