LanguageTool
LanguageTool is an open-source, self-hosted app in the Utilities category, licensed LGPL-2.1 and written mainly in Java. It ships a Docker image. It has 15,195 GitHub stars and its last commit was on Oct 25, 2026 (data as of Oct 26, 2026).
GitHub stats
- GitHub stars
- 15,195
- Forks
- 1,592
- Open issues
- 2,109
- Commits, last 12 months
- 2,061
- Last commit
- Oct 25, 2026
- Latest release
- No releases
- Created
- Aug 8, 2013
- License
- LGPL-2.1Open source
Data as of from the GitHub API. Report an error
Project health
ActiveActive: last commit Oct 25, 2026, 2,061 commits in 12 months.
| Last commit | Oct 25, 2026 |
|---|---|
| Commits, last 12 months | 2,061 |
| Latest release | No GitHub releases |
| Releases, last 12 months | 0 |
| Releases, all time | 0 |
| Open issues | 2,109 |
| Open pull requests | 46 |
| Good first issues | 0 |
| Contributing guide | No |
| Security policy | No |
| Created | Aug 8, 2013 |
Health as of , from the GitHub API. A label describes activity, not quality or security. How we label project health · Report a data error
About LanguageTool
Proofread more than 20 languages. It finds many errors that a simple spell checker cannot detect.
Description adapted from awesome-selfhosted (CC BY-SA 3.0). Source code: github.com/languagetool-org/languagetool.
Topics
- grammar
- natural-language
- natural-language-processing
- style-checker
- proofreading
- spellcheck
Repository preview
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UtilitiesJavaScript
Is LanguageTool free and open source?
Yes. LanguageTool is open-source software released under the LGPL-2.1 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run LanguageTool with Docker?
Yes. LanguageTool provides a Docker image, so you can run it on any Linux server with Docker and Docker Compose installed. The project README lists the image name and the environment variables to set.
What are the best alternatives to LanguageTool?
Popular self-hosted alternatives to LanguageTool include Excalidraw, revealjs and penpot.
Is LanguageTool actively maintained?
The most recent commit to LanguageTool was on Oct 25, 2026 with 2,061 commits in the past twelve months. It had 2,109 open issues on GitHub. appsgit's project-health label for it is "Active" as of Oct 26, 2026.