Company Overview

Grammarly was founded in 2009 by Max Lytvyn, Alex Shevchenko, and Dmytro Lider. Headquartered in San Francisco, CA, with a core R&D center in Kyiv, Ukraine. Grammarly is the world's leading AI writing assistant platform, valued at $13 billion, with 30M+ daily active users and 70K+ business teams.

Related providers: Grammarly AI Writing Service

Core Products

  • Grammarly Editor: Web-based online editor supporting document-level grammar checking, tone detection, and AI text generation
  • Browser Extension: Real-time writing assistance across Chrome, Firefox, Safari, and Edge on all websites
  • Grammarly for Windows/Mac: Desktop application providing system-wide writing enhancement
  • Grammarly Mobile: iOS and Android keyboard app for on-the-go writing optimization
  • Grammarly Business: Enterprise writing quality platform with style guides and brand tone management
  • GrammarlyGO: Generative AI writing assistant launched in 2023, supporting text generation, rewriting, and personalized suggestions
  • Plagiarism Checker: Plagiarism detection tool scanning 16B+ web pages and academic databases
  • Tone Detection: Identifies and adjusts emotional tone in written communication

Core Strengths

Comprehensive Writing Enhancement: From basic grammar, spelling, and punctuation to advanced tone, clarity, and inclusive language
AI-Powered: GrammarlyGO leverages proprietary LLMs for context-aware text generation and intelligent rewriting
Cross-Platform Coverage: Browser, desktop, mobile keyboard, and MS Office integration for seamless writing support
Enterprise Capabilities: Brand tone, style guides, data security compliance, and team collaboration features

Key Milestones

  • 2009: Founded by Max Lytvyn, Alex Shevchenko, and Dmytro Lider in Kyiv, Ukraine
  • 2015: Launched free browser extension, surpassing 1M daily active users
  • 2018: Introduced Grammarly Business for teams and enterprises
  • 2021: Raised $200M Series C, reaching a $13B valuation
  • 2023: Launched GrammarlyGO generative AI writing assistant
  • 2025+: Expanding enterprise AI writing capabilities and new vertical markets

Market Position

Grammarly competes with the following providers in the AI writing assistant market:

  • ProWritingAid: In-depth writing analysis tool for authors and professional editors
  • Hemingway Editor: Readability-focused concise writing tool
  • LanguageTool: Open-source multilingual grammar checking platform
  • Wordtune: AI-powered sentence rewriting and paraphrasing tool
  • Microsoft Editor: Built-in writing assistance within Microsoft 365