Grammarly free plan at a glance
- Free plan
- Yes
- Account needed
- Yes
- Spelling and grammar
- Yes
- Tone detection
- Yes
- AI prompts
- 100 per month
- Full-sentence rewrites
- Pro
- Plagiarism and AI detection
- Pro
- Cheapest paid plan
- Pro, $12/month billed yearly
Checked November 2026. Free limits change often. Confirm on the official pricing page.
[ADD YOUR OWN TEST: sign up for the free plan, use it for a real task, note how far you got before hitting a limit, add screenshots and the date.]
What's free
Grammarly Free works in your browser, desktop apps and phone keyboard. It fixes spelling, grammar and punctuation, shows how your tone comes across, and includes 100 generative AI prompts a month for drafting and rewriting.
What Pro adds
Pro costs $12 per month billed yearly ($144/year) or $30 month to month, with a short free trial. It adds full-sentence rewrites, clarity and style suggestions, plagiarism and AI-text detection, and 2,000 AI prompts a month.
Questions
How many AI prompts does Grammarly Free include?
100 per month.
Does Grammarly Free check plagiarism?
No, that's a Pro feature.
Is there a Grammarly free trial?
Pro has a short free trial; the Free plan itself doesn't expire.