Developer Tools
WebMotion
Last updated 2026-07-23 · benchmark measured 2026-08-09 — deterministic & reproducible
Browser-native library for deterministic, frame-accurate video composition and MP4 export.
Is WebMotion production-ready?
Legit.Show scores WebMotion 62 out of 100 — the simple average of its 6 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on WebMotion (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Reliability; its weakest is Privacy. 6 of the seven frames returned a score; Accessibility was not measurable on this service and is recorded as null — not as zero. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 80/100
- Accessibility — not measurable on this service (null — not scored as 0)
- Security — 25/100
- Privacy — 25/100
- Reliability — 92/100
- Standards — 75/100
- Discoverability — 75/100
What we measured
- No Content-Security-Policy and no HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 288 ms to first byte.
- Returns a proper 404 for unknown routes.
- 0 of 0 sampled routes reachable.
- No privacy policy found.
- Sets cookies / loads scripts with no consent prompt.
- Discoverable: OpenGraph image, canonical URL.
Who it's for
Video developers · AI agents · Content creators · Motion designers · Web developers
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