Side-by-side tool comparison
Grammarly vs LanguageTool: Grammar Checkers Compared
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Grammarly is the best English grammar assistant with superior accuracy, tone detection, and AI writing features. LanguageTool supports 30+ languages, costs less than half the price, and offers an open-source core with self-hosting options for privacy. Choose Grammarly for the most polished English writing experience; choose LanguageTool for multilingual support, affordability, or privacy-first self-hosting.
| Feature | Grammarly | LanguageTool |
|---|---|---|
| Type | AI writing assistant | Multilingual grammar checker |
| Free Tier | Yes (basic grammar) | Yes (20,000 chars/check) |
| Pro Price | $12/mo (annual) | $4.99/mo (annual) |
| Languages | English only | 30+ languages |
| Grammar Accuracy | Excellent (English) | Very good (multilingual) |
| AI Writing | Yes (GrammarlyGO) | Yes (AI rewriting) |
| Tone Detection | Yes | Limited |
| Open Source | No | Core engine is open source |
| Privacy | Cloud processing | On-premise option available |
| Browser Extension | All major browsers | All major browsers |
| Office Integration | Google Docs, MS Office | Google Docs, MS Office, LibreOffice |
| Crypto Payment | Card only | Card only |
Watch & Compare
Grammarly
Grammarly Tutorial: How to Improve Your Writing Instantly
LanguageTool
Improving your writing with LanguageTool (TUTORIAL)
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Frequently Asked Questions
What is the difference between Grammarly and LanguageTool?
Grammarly is the best English grammar assistant with superior accuracy, tone detection, and AI writing features. LanguageTool supports 30+ languages, costs less than half the price, and offers an open-source core with self-hosting options for privacy. Choose Grammarly for the most polished English writing experience; choose LanguageTool for multilingual support, affordability, or privacy-first self-hosting.
Which is better, Grammarly or LanguageTool?
It depends on your needs. Grammarly is the best English grammar assistant with superior accuracy, tone detection, and AI writing features. LanguageTool supports 30+ languages, costs less than half the price, and offers an open-source core with self-hosting options for privacy. Choose Grammarly for the most polished English writing experience; choose LanguageTool for multilingual support, affordability, or privacy-first self-hosting. Check the detailed comparison table above to see how they differ across pricing, features, and use cases.
Can I use Grammarly and LanguageTool together?
Yes, many users combine both tools. Grammarly and LanguageTool have different strengths, so using them side by side can cover more of your workflow. There's no technical reason you can't use both.
Who should choose Grammarly over LanguageTool?
Pick Grammarly if your priority is professional email and business communication polishing. Pick LanguageTool if you need multilingual teams needing grammar checking across languages. Both are solid options — the best choice depends on your specific workflow.
Is Grammarly free?
Grammarly offers a free plan with limited features. Free basic grammar checking; Premium at $12/mo for advanced features; Business at $15/member/mo for teams
Is LanguageTool free?
LanguageTool offers a free plan with limited features. Free with core grammar checks; Premium at $4.99/mo for advanced features; Enterprise API available
What are the best alternatives to Grammarly and LanguageTool?
Check our comparison page for related tools. We cover similar products in the same category so you can find the right fit. Each alternative is compared on pricing, features, and use cases.