About Grammarly
Grammarly was founded in 2009 by Alex Shevchenko, Max Lytvyn, and Dmytro Lider, building a writing assistant tool that checks grammar, spelling, punctuation, and increasingly, tone and clarity issues in a user's writing, initially through a browser extension that works across virtually any website where a user is typing, from email to social media to work documents, distinguishing it from writing tools built into a single specific application like Microsoft Word.
Grammarly's underlying technology has evolved substantially from its original rules-based grammar checking approach toward increasingly sophisticated machine learning and, more recently, generative AI capabilities, letting it offer more nuanced tone and clarity suggestions and even help draft or rewrite entire passages of text rather than only flagging discrete grammar and spelling errors. The company has expanded into a broader enterprise-focused product line addressing business writing and communication consistency needs, competing in an increasingly crowded AI writing assistant market that includes both dedicated writing tools and the writing assistance features that general-purpose AI chatbots like ChatGPT now offer, a competitive dynamic that has required Grammarly to differentiate itself through its deep, cross-application browser integration and specialized focus on writing improvement specifically rather than broader general-purpose AI assistant capability. Grammarly acquired Coda, the flexible workspace and document company, in 2025, and has raised substantial venture funding from investors including General Catalyst and BlackRock, reaching a valuation exceeding $13 billion at its peak.
