AI Text Generators → Writing Generators · LanguageTooler GmbH · Est. 2003
An open-source grammar and style checker that works in over 30 languages, with an option to self-host for privacy.
01 — Overview
LanguageTool checks spelling, grammar, punctuation and style in more than 30 languages, which makes it a favorite among people who write in German, French, Spanish and other languages that English-focused checkers handle less well. It began as an open-source project and the core engine remains open.
You can use it in the browser, in Word and Google Docs, or in a desktop app. Premium adds longer texts, a style guide and an AI paraphrasing tool. Companies that care about privacy can run the open-source server themselves. The company behind it is based in Potsdam, Germany.
Vinggle verdict One of the best choices for multilingual proofreading and a privacy-friendly alternative to the big English-first tools. Its generative features are lighter than Grammarly's.
02 — Key features
Spelling, grammar and style checks in over 30 languages.
Works in browsers, Word, Google Docs and a desktop app.
The open-source server can be run on your own infrastructure.
03 — Honest take
04 — Plans & pricing
Spelling, grammar and style checks in 30+ languages, with a per-check character limit
Per month billed annually ($69.90 a year); $24.90 if billed monthly. Adds AI paraphrasing, a style guide and much longer texts
Per user per year, minimum 2 users; shared dictionaries and centralized billing