LanguageTool
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Introduction
LanguageTool is an AI-based grammar checker that instantly checks grammar, punctuation, and spelling errors in over 30 languages.
Listed on
July 22, 2026
FreeBrowser ExtensionAI TranslationAI Content RewritingAI Grammar CheckerAI Proofreading & Polishing
What is LanguageTool?
LanguageTool is an AI-based writing assistant that corrects grammar, punctuation, spelling, and style errors in over 30 languages. It offers a free online editor, browser add-ons, desktop apps, and integrations with popular office and email tools. The tool also includes an AI-powered paraphrasing feature to help users rephrase sentences for clarity, formality, or conciseness.
How to use LanguageTool?
- To use LanguageTool, simply paste your text into the online editor or start typing, and it will automatically detect errors and provide suggestions. For browser add-ons, install the extension for your browser (Chrome, Firefox, Safari, etc.) and it will check text as you type on any website. For desktop apps, download and install the app for Windows or macOS, grant necessary permissions, and enable checking for supported applications like Outlook, Word, or Apple Mail.
Core features of LanguageTool
- Grammar and spelling checker
- Punctuation and style suggestions
- AI-powered paraphrasing tool
- Supports over 30 languages and dialects
- Browser add-ons for Chrome, Firefox, Safari, Edge, Opera
- Desktop apps for Windows and macOS
- Integrations with Google Docs, Microsoft Word, Outlook, and more
- Team features: Team Dictionary, Style Guide, user management
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