About LanguageTool
LanguageTool is an AI-based grammar checker that detects grammar, punctuation, and spelling errors across languages. It offers a web editor, browser extensions, and desktop apps to help you write more accurately, with features like a personal dictionary, statistics, and a Picky Mode for advanced suggestions. The project is open source and supports 30+ languages, with enterprise options and GDPR-compliant business solutions.
Key features
- AI-powered grammar, spelling, and style checks
- Multilingual support for 30+ languages
- Paraphrasing tool and AI-driven style suggestions
- Personal dictionary, text statistics, and a personal/style guide
- Picky Mode for advanced punctuation and typography
- Team features: Team Dictionary, Style Guide, user management
- Cross-platform: browser extensions, Google Docs add-on, Microsoft Word add-in, LibreOffice, Windows/macOS/iOS apps
- Privacy-conscious options: browser add-on texts aren’t stored; editor text can be saved across devices; GDPR/compliance for business use
Why choose LanguageTool?
- Open-source core technology with broad multilingual coverage
- Written to be a comprehensive writing assistant beyond spell checking
- Flexible deployment across browsers, editor integrations, and office apps
- Strong privacy and compliance posture for business use (GDPR-related options)
- Trusted by individuals and organizations worldwide; scalable for teams with collaboration features
Pricing
- Free version available (basic spell-check, simple punctuation, and some style checks)
- Premium subscription with enhanced grammar, punctuation, and style checks (including 20k+ additional checks and AI paraphrasing)
- Team/Business options with user management, Team Dictionary, and Style Guide; all prices incl. VAT for business
- Limited-time offers (e.g., discounts on Premium) and a 14-day money-back guarantee for Premium
- Plans typically offered in Annual, Quarterly, and Monthly intervals; pricing shown per user or per team depending on plan