A detailed comparison of Grammarly and LanguageTool to help you choose the right tool for your needs.
AI-powered writing assistant for grammar, clarity, and style.
| Plan | Grammarly | LanguageTool |
|---|---|---|
| Free Tier | ✓ Basic grammar checks | ✓ 10,000 chars per check |
| Lowest Paid | $12/mo | $4.99/mo |
| Enterprise | $15/user/mo | Custom pricing |
| Feature | Grammarly | LanguageTool |
|---|---|---|
| Grammar checking | ✓ | ✓ |
| Style suggestions | ✓ | — |
| Tone detection | ✓ | — |
| Plagiarism detection | ✓ | — |
| AI writing | ✓ | — |
| Browser extension | ✓ | ✓ |
| Desktop app | ✓ | — |
| Brand tones | ✓ | — |
| Knowledge base | ✓ | — |
| Analytics | ✓ | — |
| Style checking | — | ✓ |
| 30+ languages | — | ✓ |
| API | — | ✓ |
| Self-hosting | — | ✓ |
| Personal dictionary | — | ✓ |
| Picky mode | — | ✓ |
| Add-ins | — | ✓ |
| Rephrasing | — | ✓ |
| Open Source | ✗ | ✓ |
| Rating | ⭐ 4.4 | ⭐ 4.2 |
Choose Grammarly if: You need anyone wanting to improve their writing. Grammarly excels with its works everywhere and good accuracy.
Choose LanguageTool if: You need multi-language writers wanting open-source checking. LanguageTool stands out with its open source and multi-language.
Best free option: Both Grammarly and LanguageTool offer free tiers. Grammarly offers "Basic grammar checks" while LanguageTool offers "10,000 chars per check".
It depends on your needs. Grammarly is better for anyone wanting to improve their writing, while LanguageTool is better for multi-language writers wanting open-source checking. Both are excellent tools rated 4.4 and 4.2 respectively.
Grammarly starts at $12/mo while LanguageTool starts at $4.99/mo. Both offer free tiers.
Most tools offer import/export features to help you migrate. We recommend trying LanguageTool's free tier before fully committing to a switch.
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