LanguageTool
4.3freemiumAn open-source-rooted grammar and style checker covering 30+ languages, with AI rephrasing in the paid tier.

About LanguageTool
LanguageTool is an AI-based grammar and style checker that supports over 30 languages. It proofreads text for grammar mistakes, spelling errors, and style issues, and offers a paraphrasing tool in its paid version. The tool includes a distraction-free editor, personal dictionary, and statistics to track writing progress. It works as a browser add-on across major browsers and integrates with email clients and office suites. LanguageTool is ideal for writers, students, and professionals who need multilingual writing assistance, especially non-native speakers. Typical use cases include checking emails, blog posts, academic papers, and business communications.
Tool Details
4.3
Free tier; Premium from $5.83/mo
AI writing
2026-07-02
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