LanguageTool
167 likes
Proofreading software compatible with LibreOffice, Word, Firefox, and Chrome. Supports 20+ languages, offering two tiers: free and premium, with features like customizable checks, Microsoft add-on, and error detection in gender, ISBN, and IBAN. Offers open-source web and desktop versions.
License model
- Freemium • Open Source
Application types
Country of Origin
Germany
EU
Platforms
- Mac
- Windows
- Linux
- Online
- iPhone
- iPad
- Microsoft Edge
- ONLYOFFICE
- Google Chrome
- Microsoft Outlook
- Safari
- Visual Studio Code
- Microsoft Word
- Eclipse
- TinyMCE
- Google Docs
- Thunderbird
- Vim
- Sublime Text
- GNU Emacs
- Opera
- Gmail
- LibreOffice
- Apache OpenOffice
- Mozilla Firefox
- LibreOffice - Writer
Features
LanguageTool News & Activities
Highlights • All activities
Recent News
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Share a News TipRecent activities
- Danilo_Venom updated LanguageTool
ResearchWize added LanguageTool as alternative to ResearchWize
mrwebtool added LanguageTool as alternative to Mr.Webtool- boomflex liked LanguageTool
bobbyhiltz added LanguageTool as alternative to Gramma- PredatorQ liked LanguageTool
POX added LanguageTool as alternative to Eloquent Proofreading Assistant- DeanDark liked LanguageTool
LanguageTool information
Developed by
LanguageTooler GmbH Licensing
Open Source (LGPL-2.1) and Freemium product.Pricing
Subscription ranging between $3 and $100 per month + free version with limited functionality.Written in
Rating
Average rating of 4.1Alternatives
77 alternatives listedSupported Languages
AlternativeTo Categories
Web Browsers, AI Tools & Services, Education & ReferenceApple AppStore
- Updated Mar 3, 2022
- 4.82 avg rating
GitHub repository
- 13,034 Stars
- 1,432 Forks
- 1999 Open Issues
- Updated Apr 28, 2025
Comments and Reviews
Private + open source + free to run your own instance? That's amazing.
LanguageTool browser addon is no longer open source. Only the desktop app is open source.
LanguageTool does not respect your privacy as they claim, they actually store and have real people reading what you type in certain occasions, and they also track you through multiple devices using Google Analytics. I will post two texts that were taken from their page about privacy, you can read it all at https://languagetool.org/legal/privacy.
“If you explicitly ignore corrections, we log the internal rule id of that error and the text fragment marked as incorrect (i.e. the small part of the sentence that was underlined as an error) and 15 characters to the left and to the right of the fragment. This enables us to analyze and avoid false alarms.”
“This website uses Google Analytics, a web analysis service of Google LLC ("Google"). The use includes the "Universal Analytics" operating mode. This makes it possible to assign data, sessions and interactions across multiple devices to a pseudonymous user ID and thus analyze a user's activities across devices.”
This site is among the ones I use most almost every day, as it helps me in writing and correcting errors in my texts!
Its verification is fast and excellent, not requiring the creation of an account (for most resources).
A very clever and powerful tool for text editing and improving. However feels a little slow on the loading times and integration. Please allow delayed startup.
Open source doesn't track you and works perfectly and fast.
A Wonderful Privacy-Focused Alternative to Grammarly.
Very questionable support for non-Latin languages. Too many minor mistakes. Just find some native speaker or translator.