LanguageTool

LanguageTool

Office & PDFHealthFair (65/100)

Open-source spelling and grammar checker for English and about 30 other languages. Add-ons for Chrome, Word and Google Docs, and you can self-host it.

Open sourceEasy to use

Free alternative to

Office & PDF

Code activity

Stars
15,236
Forks
1,601
Open issues & PRs
2,164
Last commit
today

Details

Type
Open source
License
LGPL-2.1
Written in
JavaHTMLPythonShell
Platforms
Web · Windows · Mac · Self-hosted
Ease of use
Easy to use
Get LanguageTool ↗
LanguageTool homepage

Pros

  • Catches English grammar mistakes well
  • Self-host it so your text never leaves your server

Cons

  • Doesn't support every language (Vietnamese, for example)
  • Advanced sentence rewriting requires Premium
How is the 65/100 "Health" score calculated?

Dorabot computes it weekly from public GitHub data; it is not a review of software quality: 40 points for code freshness (a commit in the last 30 days earns full points), 25 points for popularity by stars, 20 points for a recent release, 15 points for the ratio of open issues to stars. 80+ is Good, 60–79 Fair, below 60 Weak.

FAQ

Is LanguageTool free?

Yes. LanguageTool is open source (LGPL-2.1 license) and free for personal and commercial use.

Which platforms does LanguageTool run on?

LanguageTool is available for Web, Windows, Mac and self-hosting on your own server.

Similar apps

Free Dorabot tools