Browse projects/Documents and text/Check grammar and spelling/languagetool

languagetool-org/languagetool A tool that works on your files

Proofread a text document in the language or dialect you choose

  • Open source
  • Runs on your own computer
  • Windows, Mac or Linux
  • Tested 5 Nov 2026

You bring

  • UTF-8 plain text in the selected language

You get

  • suggestions with the original context and proposed corrections

What you can change

Set these in UGT before you start.

  • language code for proofreading; defaults to en-US
What can it reach?

Only the files you give it, with no network.

How was it tested?

Run on clean Intel and AMD and Apple silicon and ARM machines on 5 Nov 2026. Its check passed on a known sample and rejected deliberately broken results.

This checks the job this page describes, not every feature of the original project.

Project, licence and recipe files

languagetool-org/languagetool on GitHub

Licence. LGPL-2.1. The store template retains its licence in TEMPLATE-LICENSE.

The 6 recipe files

Recipe revision 1f66e4fa3a76, from cfb5aea771bd.

Documents and text

Convert, read and proofread PDFs, Office files and text.

All 12