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Office · free alternative

LanguageTool

Grammar and style checker with offline and self-hosted options.

Licence
LGPL-2.1
Platforms
web, macos, windows, linux, self-hosted
Self-hostable
Yes
Pricing model
open-core
Language
Java
Repo activity
Last commit October 25, 2026
GitHub stars
15,197
Last verified
October 24, 2026

Replaces

The paid products this tool can replace, at their public list price.