Open-source grammar and style checker.
No subscription, fully open source. Use it free, or have us set it up.
LanguageTool is a leading free, open-source option. Open-source grammar and style checker. It is free to use and community-maintained.
LanguageTool is a free, open-source tool. Open-source grammar and style checker. Because it is open source, you can use it at no cost, self-host it for full control, and rely on an active community.
LanguageTool fits professionals who want strong capabilities without recurring fees. It is a great fit if you value owning your data; if you need turnkey support, our setup service can help.
No licence fees, ever.
Keep full control of your data.
Regular updates and support.
Open formats and standards.
LanguageTool is free and open source under the LGPL-2.1 license - no paid tier on the core tool. Managed hosting or setup is optional.
Yes, it is free and open source under LGPL-2.1.
You can self-host it, and some tools offer a hosted version.
Yes, we offer a done-for-you setup and hosting service.