An AI writing assistant that combines grammar checking, tone rewriting, and generative text capabilities to help individuals and teams write clearly and consistently.
- Best-in-class grammar, spelling, and style correction
- Browser extension works across virtually every web-based writing surface
- Tone adjustment and clarity rewrites improve communication quality
- Business plan includes style guides for brand consistency
- Generative AI features are weaker than dedicated tools like ChatGPT
- Only supports English — not suitable for non-English writing workflows
- Privacy concerns as all text passes through Grammarly servers
| Free tier | ✓ Free tier |
| Pricing model | subscription |
| Price (Pro) | $30 USD |
| Features | |
| Languages | en |
| API | ✓ Available Docs ↗ |
| Pricing Plans | Free$0/moBasic grammar and spelling checks, tone detection Pro$30/moFull rewrites, clarity suggestions, plagiarism checker, generative AI Business$15/mo per userMin 3 users, style guides, brand tones, admin dashboard EnterpriseCustomSSO, compliance features, dedicated support |
| Platforms | |
| Integrations | Chrome extension, Microsoft Word, Google Docs, Outlook, Slack, VS Code, Grammarly API, Figma |
| Homepage | https://www.grammarly.com |
AI Commentary
Grammarly has evolved from a grammar checker into a full AI writing assistant, but its core strength remains its deeply trained understanding of English grammar, style, and clarity. The browser extension's ubiquity — working in Gmail, Slack, Google Docs, and virtually any text field in Chrome — makes it uniquely integrated into daily writing workflows without requiring any context switching. The Business tier's style guide feature allows organizations to enforce specific terminology and writing conventions automatically. However, its generative AI capabilities are relatively basic, and its English-only scope limits international adoption.