Grammarly vs LanguageTool
Grammarly leads on style, tone and generative rewriting in English. LanguageTool covers more than thirty languages, has a genuinely useful free tier and can be self-hosted for teams that cannot send text to a third party.
Side-by-side comparison
| Grammarly | LanguageTool | |
|---|---|---|
| Rating | 4.5 / 5 | 4.7 / 5 |
| Reviews | 43,100 | 12,600 |
| Users | ~37M+ | ~2M+ |
| Pricing | Freemium · From $12/mo | Freemium · From $4.99/mo |
| Category | Writing | Writing |
| Developer | Grammarly | LanguageTool |
| Last updated | 2026-07-01 | 2026-06-20 |
| Best for | Professionals and students who write daily in the browser and want a safety net before hitting send. | Multilingual writers and privacy-conscious teams who want a self-hostable alternative to Grammarly. |
Grammarly features
- Real-time grammar checking
- Tone detection
- Generative rewriting
- Plagiarism detection
LanguageTool features
- See the full LanguageTool page for its store description.
Final recommendation
Choose Grammarly for polished English business writing. Choose LanguageTool for multilingual work, tighter budgets or data-residency requirements.
Frequently asked questions
Can I install Grammarly and LanguageTool at the same time?
Yes, Chrome runs them independently. Keep both only if they do different jobs; if they overlap, pick one, because each active extension adds memory use, page scripts and another set of permissions.
Where do the ratings and install numbers come from?
From each extension's public Chrome Web Store listing. They can lag the live store slightly, and a dash means the figures have not been synced yet.
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