Grammarly

Grammarly is the most widely-used AI writing assistant in the world, with over 30 million daily active users. What started as a grammar and spell checker has evolved into a comprehensive AI communication platform that helps you write clearly, correctly, and effectively across virtually every platform where you type.

What Makes Grammarly Stand Out

Grammarly's ubiquity is its superpower. The browser extension, desktop app, and mobile keyboard mean it's working in the background across Gmail, Slack, Google Docs, LinkedIn, and hundreds of other platforms. Unlike AI writers that generate content from scratch, Grammarly focuses on making your writing better — catching subtle grammar errors, suggesting clearer phrasing, adjusting tone, and ensuring your message lands the way you intend. Its recent generative AI features add composition assistance, but editing and refinement remain its core strength.

Key Features

• Grammar & Spelling: Industry-leading error detection that catches issues other tools miss.
• Tone Detection: Real-time analysis of how your message will be perceived by readers.
• Clarity Suggestions: Rewrites wordy, unclear, or passive sentences into crisp, direct prose.
• GrammarlyGO: Generative AI for composing, rewriting, and replying to messages.
• Style Guide: Set company-wide writing rules and terminology (Business plan).
• Plagiarism Detection: Check content against billions of web pages.

Who Is Grammarly Best For?

Grammarly is for anyone who writes in English professionally. It's particularly valuable for non-native English speakers, professionals who send high-stakes communications, and teams that need consistent writing quality across the organization. The free tier is genuinely useful for basic grammar, while Premium and Business unlock the features that make Grammarly indispensable.