Developer Tools
OfflineTTS
Last updated 2026-07-19 · benchmark measured 2026-07-19 — deterministic & reproducible
Free, offline text-to-speech and speech-to-text that runs entirely in your browser.
Overall production-readiness score — reserved
Legit.Show benchmarked OfflineTTS across all seven frames. The single overall score is shown to the verified maker; the frame-by-frame breakdown is public below.
Is OfflineTTS production-ready?
Legit.Show ran its deterministic 7-Frame production-readiness benchmark on OfflineTTS (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Discoverability; its weakest is Security. The per-frame breakdown is public on the Legit.Show listing; the single overall production-readiness score is reserved for the verified maker.
The 7 Frames
- Performance — 82/100
- Accessibility — 96/100
- Security — 45/100
- Privacy — 75/100
- Reliability — 75/100
- Standards — 92/100
- Discoverability — 100/100
What we measured
- Security headers present: X-Content-Type-Options, Referrer-Policy.
- No Content-Security-Policy and no HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 130 ms to first byte.
- 3 of 3 sampled routes reachable.
- Has a reachable privacy policy.
- Sets cookies / loads scripts with no consent prompt.
- Discoverable: structured data, sitemap, OpenGraph image, canonical URL.
Who it's for
Content creators · Podcasters · Audiobook producers · Accessibility users · Developers
Pricing
Free