LanguageTool

Proofread more than 20 languages. It finds many errors that a simple spell checker cannot detect.

Description from awesome-selfhosted (CC BY-SA 3.0)

Still maintained? Yes: 471 commits in the last 90 days.

Comparisons in Miscellaneous: ChatGPT alternatives, DeepL alternatives.

Docker #46 of 77 in Miscellaneous

At a glance

LanguageTool quick facts

Health score: 72/100 GOOD
Stars: 15,216
Last commit: yesterday (Oct 2026)
Latest release: No tagged release
Licence: LGPL-2.1

View languagetool-org/languagetool on GitHub ↗ Website ↗

Top alternatives to LanguageTool

In its own words

The project's README opens: "LanguageTool is open-source proofreading software for English, Spanish, French, German, Portuguese, Polish, Dutch, and more than 20 other languages. It finds many errors that a simple spell checker cannot detect."

Why it ranks here

Health score explained

LanguageTool scores 72/100, #46 of 77 in Miscellaneous: 471 commits in the last 90 days earn 35.0 of 35 points, the absence of a tagged release forfeits all 25 release points, 15,216 stars add 16.7 of 20, an active, unarchived repository keeps 10 and Docker support adds the final 10. That places it in the good band (70 and above). The biggest shortfall is release recency, worth 25.0 more points.

Recomputed nightly from the GitHub API. How the score is calculated.

Commit activity 35.0 / 35

471 commits in 90 days (30+ scores full marks)
Release recency biggest shortfall 0.0 / 25

No tagged release found
Stars 16.7 / 20

15k stars on GitHub (logarithmic)
Not archived 10.0 / 10

Repository is active
Docker support 10.0 / 10

Docker image or Compose file available

Commit activity

471
Last 90 days: 2,050
Last 12 months: yesterday
Last push

Ranked #46 of 77 tools in Miscellaneous by health , between iSponsorBlockTV (#45) and Digisteps (#47) .

Details

Licence	LGPL-2.1
Platforms	Java, Docker
Latest release	No tagged release
Stars	15,216
Open issues	2,110
Docker	Yes
Repository	languagetool-org/languagetool ↗

Visit website ↗ Source code ↗

LanguageTool vs its top 5 alternatives

Active tools that share a category with LanguageTool (Miscellaneous), scored on the same five terms.

Tool	Health	Stars	Licence	Last commit
penpot	99	62k	MPL-2.0	today
Reactive Resume	99	45k	MIT	today
Anubis	98	24k	MIT	yesterday
Infisical Community Edition	98	30k	MIT	today
ConvertX	97	19k	AGPL-3.0	2 days ago
LanguageTool (this tool)	72	15k	LGPL-2.1	yesterday