LanguageTool
Writing
An open-source multilingual grammar, spelling, and style assistant for better writing across platforms
Grammar CheckerWriting Assistant
Grammarly
Grammarly helps professionals and teams write clearly and efficiently across any platform.
Grammarly makes AI writing convenient. Work smarter with personalized AI guidance and text generation on any app or website.
Updated
2026-05-14
Platforms
Web / Browser Extension / Desktop / Mobile
Freemium
Premium plan required for advanced features
* Pricing is for reference only; see the official site for current pricing.
grammarly.com
Key Features
Grammar Check
Catch errors in grammar, spelling, and punctuation as you write across any app or website.
Tone & Clarity
Receive suggestions to adjust tone, improve readability, and make your message more effective.
Plagiarism Check
Check originality against billions of web pages and generate proper citations.
Brand Voice
Set custom style guidelines and maintain consistent brand voice across your team.
Everywhere You Write
Works seamlessly across Gmail, Google Docs, Slack, Microsoft Office, and more.
Best For
Teachers
Use it to review teaching materials for grammar, clarity, and tone.
Students
Use it to check assignments and improve writing clarity.
Marketers
Use it to polish copy and maintain a consistent brand voice.
Pros
- Works everywhere: browser, desktop, mobile
- Enterprise-grade security and compliance
- Improves writing quality significantly over time
- Team analytics and admin controls
Considerations
- Premium plan required for advanced features
- Occasional false positives in grammar suggestions
- Privacy concerns with cloud-based processing
Related tools
Explore a few similar tools next
