LanguageTool
Grammar, spelling and style checker for dozens of languages, usable in the browser without installing anything.
Artifact by LanguageTool
Use it
Opens languagetool.org in a new tab. Nothing to install.
- You provide
- Typed or pasted text
- You get
- Marked errors and suggestions
- Account
- No sign-up needed
- AI
- AI-powered; no API key needed
- Your input
- Not stated: check the tool's privacy notes before using private data
- Price
- Free to use
- Made with
- Hosted web tool
- Source
- Open source
- Link check
- Answered on Oct 31, 2026
About
Category: Text & writing · grammar checker
Reviews
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Signals
- Stars
- 15,221
Details
- Auth
- No auth
- License
- LGPL-2.1
- Repository
- github.com/languagetool-org/languagetool
- Website
- languagetool.org
- First seen
- Oct 31, 2026
- Last checked
- Oct 31, 2026
- Source
- GitHub
Cite this page
LanguageTool: free online tool. Agent Mart. https://agentmart.dev/artifacts/languagetool (last updated 2026-10-31)