Grammarly is the world's most widely adopted AI writing assistant, used by over 30 million people and 70,000 teams daily. Founded in 2009 by Max Lytvyn and Alex Shevchenko, the tool goes far beyond simple spell-check — it analyzes sentence structure, word choice, tone, formality, and inclusiveness in real time. Grammarly works as a browser extension (Chrome, Firefox, Safari, Edge), a desktop app for macOS and Windows, a mobile keyboard for iOS and Android, and integrates directly into Google Docs, Microsoft Word, and Outlook.
The Premium tier adds advanced suggestions for clarity, vocabulary enhancement, genre-specific style checks, and a plagiarism detector that scans against 16 billion web pages. Grammarly Business adds a centralized admin dashboard with style guides, brand tones, analytics, and team-wide snippet libraries. In 2023, Grammarly introduced GrammarlyGO, a generative AI assistant powered by large language models that can compose, rewrite, and ideate text — putting it in direct competition with ChatGPT for inline writing tasks.
The tool supports English, German, French, Spanish, and Portuguese.
Frequently Asked Questions
Q: Is Grammarly free?
Yes, Grammarly offers a robust free tier that covers basic grammar, spelling, and punctuation checks. Premium features like tone detection, full-sentence rewrites, and plagiarism checking require a paid plan.
Q: Does Grammarly work with Google Docs?
Yes, Grammarly integrates directly with Google Docs via its browser extension, providing real-time suggestions as you type.
Q: Is Grammarly safe to use for confidential documents?
Grammarly encrypts all text in transit and at rest. Enterprise plans include additional controls like data regionalization and the option to prevent text from being used for model training.
Key Features
✓ Grammar & Spelling Check
Catches contextual grammar errors, misspellings, and punctuation mistakes in real time.