Productivity
LanguageTool
Last updated 2026-08-03 · benchmark measured 2026-08-03 — deterministic & reproducible
LanguageTool is a grammar, spelling, and style checker for written text.
Is LanguageTool production-ready?
Legit.Show scores LanguageTool 81 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on LanguageTool (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Privacy; its weakest is Security. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 68/100
- Accessibility — 87/100
- Security — 40/100
- Privacy — 100/100
- Reliability — 90/100
- Standards — 97/100
- Discoverability — 87/100
What we measured
- Security headers present: X-Frame-Options.
- No Content-Security-Policy and no HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 536 ms to first byte.
- Returns a proper 404 for unknown routes.
- 2 of 3 sampled routes reachable.
- Has a reachable privacy policy.
- Sets cookies / loads scripts with no consent prompt.
Who it's for
Writers · Students · Professionals · Businesses · Non-native speakers
Pricing
Free with limited features; Premium subscription available with 20% limited-time discount; 14-day money-back guarantee; PayPal and credit card accepted