Grammarly is an AI writing assistant that checks grammar and tone and rewrites text wherever you type, from email to Google Docs. It now also offers AI agents for detecting AI-written text, finding citations and grading drafts. Grammarly is now part of Superhuman.
Grammarly at a glance
Price | Free; Pro $12 |
|---|---|
Works in | Browser extensions, Google Docs, Microsoft Office, Windows, macOS, iOS, Android |
Best for | Students and professionals who write every day |
Key features
Grammar, spelling and tone checks.
Full-sentence and paragraph rewrites.
AI Detector and Humanizer agents.
Citation Finder, AI Grader, Reader Reactions and a Resume Builder.
Plagiarism detection on Pro.
Grammarly pricing
Plan | Price | AI prompts |
|---|---|---|
Free | $0 | 100/month |
Pro | $12 (free trial) | 2,000 per member/month |
Enterprise | Contact sales | Unlimited |
What to know
Free has no rewrites, tone adjustment, plagiarism checks or AI detection.
The plans page doesn't say whether $12 is billed monthly or annually.
Our take
Grammarly's advantage is that it's everywhere you type, with no copy-pasting into a chatbot. Free is enough for clean grammar; Pro is worth it if you want rewrites and plagiarism checks built into your workflow.
Grammarly alternatives
Facts checked against Grammarly's official plans page on November 13, 2026.
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