# Open Source Alternative to Grammarly

Open source alternatives · Productivity

Grammarly's premium plan is US$12 a month and reads everything you type. LanguageTool checks grammar free, privately.

**What the paid app costs:** US$12/mo

## Why switch?

A grammar checker sees your emails, essays, and job applications. LanguageTool's open-source engine runs locally or on your own server, supports 30+ languages, and its browser extension works everywhere Grammarly does.

## Compare the alternatives

AlternativeLicensePlatformsBest for[LanguageTool](https://languagetool.org/)LGPL-2.1 / MPLWeb, browser extension, desktopThe open-source Grammarly

### [LanguageTool](https://languagetool.org/)

Free forever LGPL-2.1 / MPL · Web, browser extension, desktop

- Grammar and style checking
- 30+ languages supported
- Self-hostable, privacy friendly

**The open-source Grammarly**

[Official site →](https://languagetool.org/)

## Which one should you pick?

- **LanguageTool:** The open-source Grammarly

## Frequently asked questions

### Is LanguageTool as good as Grammarly?

For grammar and spelling, very close, and better in many non-English languages. Grammarly's tone suggestions remain ahead.

### Does it work in my browser?

Yes, extensions for Chrome, Firefox, Edge, and Safari.

### Can I use it offline?

Yes, the desktop app and self-hosted server work fully offline.

## More open source alternatives

- [Notion](/open-source-alternative-to-notion/)
- [Evernote](/open-source-alternative-to-evernote/)
- [Todoist](/open-source-alternative-to-todoist/)
- [Trello](/open-source-alternative-to-trello/)
- [Asana](/open-source-alternative-to-asana/)
- [Airtable](/open-source-alternative-to-airtable/)

[← All open source alternatives](/open-source-alternatives/)