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Grammarly is an AI-powered writing assistance tool that helps individuals and organizations produce clearer, more credible, and more effective written communication. The platform operates across more than one million apps and websites, providing real-time suggestions for grammar, spelling, punctuation, tone, and style without requiring users to leave their workflow.
The core writing capabilities include full-paragraph rewrites with a single click, tone adjustments that adapt text from formal to conversational, and clarity improvements that reduce unnecessary back-and-forth. A built-in plagiarism checker and AI content detector support academic integrity and content authenticity, while generative AI prompts help users draft, outline, and expand their writing from scratch.
For teams and organizations, Grammarly offers brand tone customization, shared style guides, knowledge share for company-specific terminology, snippets for reusable message templates, and analytics dashboards to track team writing quality over time. Enterprise deployments add SAML SSO, SCIM, data loss prevention, BYOK encryption, and granular permission controls.
Grammarly also provides a native document editor called Docs, designed as a first-party writing surface with access to AI agents including Expert Review, Reader Reactions, AI Grader, and Citation Finder. The Go AI assistant works across all tabs and apps to provide context-aware writing support. Multilingual writing support is available for English, Spanish, French, German, Portuguese, and Italian.
- Checking emails and documents for grammar, spelling, and punctuation errors before sending
- Rewriting full paragraphs to improve clarity and conciseness with a single click
- Adjusting the tone of professional messages to match the intended context
- Detecting plagiarism and AI-generated content in academic or professional writing
- Generating text drafts and outlines using AI prompts across all writing surfaces
- Enforcing brand voice and style guide rules across marketing and customer-facing teams
- Providing team-wide writing analytics to identify communication improvement opportunities
- Writing and editing across Gmail, Outlook, Google Docs, Word, Slack, and other applications
- Supporting multilingual writing in Spanish, French, German, Portuguese, and Italian
- Using AI agents for expert feedback, grade prediction, and audience reaction insights
- Creating and sharing reusable message snippets to speed up repetitive writing tasks
- Securing organizational writing workflows with SSO, SCIM, and data loss prevention controls
