Grammarly is an AI writing assistance company founded in 2009 by Max Lytvyn, Alex Shevchenko and Dmytro Lider. It began as a tool for catching grammar and spelling mistakes and has grown into a comprehensive AI communication assistant used by tens of millions of individuals and tens of thousands of organizations worldwide.
The platform analyzes writing in real time across browsers, desktop apps, mobile keyboards and integrations with widely used productivity tools. Beyond grammar and spelling, Grammarly provides suggestions for clarity, conciseness, tone, style and engagement, and has expanded into generative AI features that can draft, rewrite, summarize and adjust text based on user prompts and context.
Grammarly serves both consumers and enterprises. Its business offering emphasizes consistent, on-brand communication, security and administrative controls for teams, while individual users rely on it for everyday writing across email, documents and messaging. The company has also expanded its product strategy through acquisitions, including the email productivity app Superhuman, broadening its footprint in AI-assisted communication and productivity.
The company is privately held and well capitalized, and is widely cited as one of the most successful applied AI products in the writing and productivity category, with a long track record predating the recent generative AI wave.
Grammarly competes with built-in writing tools from Microsoft and Google, as well as general-purpose AI assistants and newer AI writing startups. Its differentiation lies in deep integration across surfaces, a mature suggestion engine and strong brand recognition.
For professionals, students and teams, Grammarly remains one of the most established and broadly integrated AI writing assistants, though some advanced generative features and controls require paid or enterprise plans.
