LanguageTool is an Open Source proof­reading program for English, French, German, Polish, and more than 20 other languages.

It finds many errors that a simple spell checker cannot detect and several grammar problems.

Make your browser window wider to get a text field where you can try out LanguageTool directly or use this simple form.



LanguageTool for LibreOffice and OpenOffice
Version 3.0 — 54 MB — Requires Java 7+
LanguageTool stand-alone for your Desktop
Version 3.0 — 86 MB — Requires Java 7+
LanguageTool browser extension for Firefox

Please see our checklist if you experience problems. Download old releases or daily builds. Start with Java WebStart.

License & Source Code

LanguageTool is freely available under the LGPL 2.1 or later.
The source is available on github.

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