Grammarly
Responsible AI that ensures your writing and reputation shine
Grammarly is the world's leading AI communication assistant, trusted by over 40 million people and 50,000 organizations. It goes beyond grammar and spelling to offer tone detection, sentence rewriting, fluency improvements, plagiarism detection, AI text detection, and generative AI prompts. Available as a browser extension, desktop app, mobile keyboard, and integrations across virtually every writing surface.
- Category: AI Editing & Enhancement
- HQ: San Francisco, CA (with offices in New York, Kyiv)
- Founded: 2009
- CEO: Alex Shevchenko & Max Lytvyn (co-founders); Rahul Roy-Chowdhury (CEO)
- Pricing: freemium
- Starting at: Free
Tags: grammar checker, AI writing assistant, proofreading, tone detection, plagiarism checker, AI content detection, writing enhancement
Best For
Anyone who writes professionally and wants real-time grammar, clarity, and tone suggestions across email, docs, and social.