Grammarly was founded in 2009 by Max Lytvyn and Alex Shevchenko in Kyiv, Ukraine. What started as a grammar-checking tool for students has grown into one of the most widely used writing assistants, with over 30 million daily active users.
The product works as a browser extension, desktop app, keyboard on mobile, and integrates directly into Google Docs, Microsoft Word, and many other platforms. It catches everything from basic spelling errors to complex grammatical issues, and the tone detector helps users understand how their writing might come across to readers.
Grammarly’s free tier handles grammar, spelling, and punctuation. The Premium plan adds clarity suggestions, vocabulary enhancements, tone adjustments, and plagiarism detection. Business plans include style guides, brand tones, and analytics for teams.
In 2023, Grammarly introduced GrammarlyGO, an AI writing assistant powered by generative AI. It can help compose text, rewrite paragraphs, and adjust formality — similar to what other AI writing tools offer but integrated into the existing Grammarly experience.
The company relocated its headquarters to San Francisco while maintaining significant operations in Kyiv and other offices. They’ve raised over $400 million in funding at a valuation of $13 billion. The team has grown to over 900 employees.
Grammarly’s challenge is staying relevant as AI writing tools multiply. But their distribution advantage — millions of users who already have the extension installed — gives them a strong position to build on.
