LanguageTool vs Grammarly: Ultimate Comparison for Writers
Grammarly and LanguageTool are both popular options when you’re looking for an AI writing assistant to polish your writing. But which one is better suited for your needs?
Read on for an in-depth comparison of the two tools’ features, pricing, and integrations. Armed with this information, you’ll understand whether Grammarly or LanguageTool is the right choice for you.
What is LanguageTool?
LanguageTool is an open-source all-in-one writing assistant popular for its multilingual capabilities. It’s frequently used by non-native English writers and teams looking for collaborative editing.
Some of the primary features of LanguageTool include:
- Advanced grammar and style checking in 30+ languages
- Personal dictionary and rule customization
- Paraphraser with multiple modes
- Team features
- Apps and extensions for many different operating systems and browsers
- Seamless integration with MS Word, Google Docs, and more
What is Grammarly?
Grammarly is an AI-powered real-time writing assistant. It corrects grammar, spelling, and punctuation and offers style suggestions to enhance tone, clarity, and engagement.
Grammarly’s key features include:
- AI-based grammar, spelling, and punctuation correction
- Suggestions to enhance tone
- Clarity and conciseness recommendations
- Plagiarism checker (for Premium users)
- Browser extensions, desktop app, and mobile keyboards
- Integrations with Google Docs, MS Word, and more
LanguageTool vs Grammarly: Comparison of features
Both LanguageTool and Grammarly provide advanced grammar and style suggestions.
However, Grammarly supports only one language (English), while LanguageTool works in over 30 languages and dialects, including French, German, Dutch, Spanish, and Portuguese.
| Feature | LanguageTool | Grammarly |
|---|---|---|
| Advanced grammar, punctuation, and spell checking | ||
| Style suggestions | ||
| Personal dictionary | ||
| Personal style guide | (Teams only) | |
| Paraphraser | ||
| Plagiarism checker and AI detector | ||
| Team collaboration | ||
| Offline use | ||
| Multilingual support | (English only) |
Integrations
Both LanguageTool and Grammarly offer integrations for the most common programs and websites.
LanguageTool additionally integrates well with open-source editors and is more developer-friendly.
| App/Extension | LanguageTool | Grammarly |
|---|---|---|
| Google Chrome | ||
| Microsoft Edge | ||
| Safari | ||
| Mozilla Firefox | ||
| Windows | ||
| macOS | ||
| iOS | ||
| Microsoft Word | ||
| Overleaf | ||
| Obsidian | ||
| LibreOffice |
Pricing
Grammarly users can select a free plan, while LanguageTool’s grammar checker and paraphraser can only be accessed for free via their website (i.e., not in apps or extensions). However, LanguageTool’s paid plans are less expensive than Grammarly’s.
Final word: Grammarly or LanguageTool (or QuillBot?)
If you write in a language other than English (or work with others who do), LanguageTool is the superior choice. With LanguageTool, you get grammar correction in over 30 languages at a lower price than Grammarly’s premium subscription.
If you want free basic grammar correction in English or access to additional tools, like AI detection, Grammarly could work for you.
But, can we encourage you to look into QuillBot—the tool that powers our Grammar Checker? QuillBot offers a free plan, has multilingual support, and includes additional tools such as AI Humanizer, AI Detector, Translate, AI Chat, and more. Additionally, QuillBot’s Premium plan is less expensive than Grammarly’s while offering many of the same features.
What are you waiting for?
Cite this Scribbr article
If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.
Scribbr. (2025, August 26). LanguageTool vs Grammarly: Ultimate Comparison for Writers. Scribbr. Retrieved July 9, 2026, from https://www.scribbr.com/ai-tools/languagetool-vs-grammarly/
