Grammarly

What is Grammarly?

Grammarly is an AI writing assistant that detects and corrects grammar, spelling, punctuation, and style errors across digital platforms, made by Grammarly Inc. The tool integrates into browsers, desktop applications, and mobile devices to provide real-time writing suggestions as users compose emails, documents, social media posts, and web content.

The platform offers three pricing tiers. The free version includes basic grammar checking, tone detection, and 100 monthly AI prompts. The Pro plan ($12/member/month billed annually) adds sentence rewriting, tone adjustment, brand voice customization, and 2,000 monthly AI prompts. The Enterprise plan includes unlimited members, dedicated support, confidential mode, granular permissions, and unlimited generative AI features. Grammarly serves 40 million individual users and 50,000 organizations across education, marketing, sales, customer support, and HR departments.

Core features include paragraph-level rewrites to improve clarity and flow, tone suggestions that adapt messaging for specific contexts, and proofreading across grammar, structure, and clarity dimensions. Recent additions include a Humanizer agent that adds personality to AI-generated text, an AI Detector agent that identifies machine-written content, and Reader Reactions that simulate audience comprehension. The platform integrates with productivity tools like Zendesk and supports brand style guides for enterprise customers. Grammarly does not sell user content, monetize it for advertising, or allow third-party providers to train models on user submissions.

The company reports that organizations deploying Grammarly save an average of $5,000 per employee annually and achieve 20 days of saved time per user yearly. Users report 50% fewer writing and editing hours and 3x faster editing processes. The tool supports multiple languages and offers specialized guidance through essay writing guides, career resources, and citation management features.

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