About Grammarly
Grammarly is an AI writing assistant that works wherever you write — in the browser, email, documents and chat apps, on desktop and mobile. It catches spelling, grammar and punctuation mistakes in real time and suggests clearer wording, then goes further with AI features that rewrite full sentences, adjust tone and generate drafts from prompts.
The free plan covers core grammar and spelling checks, tone detection and 100 AI prompts per month. Pro adds full-sentence rewrites, tone adjustment, fluency suggestions, plagiarism and AI-text detection, 2,000 AI prompts per member per month, plus team features such as a style guide, brand tones and snippets. Enterprise adds unlimited prompts, SAML SSO, data loss prevention and advanced security.
It is especially useful for professionals, students and non-native English writers who want polished writing without switching tools.
Grammarly features
- Grammar and spelling checks — Real-time corrections for grammar, spelling and punctuation.
- Full-sentence rewrites — Rewrite unclear sentences for clarity and concision (Pro).
- Tone detection and adjustment — See how you sound and change the tone in one click.
- Generative AI prompts — Draft and rework text from prompts (100/month free, 2,000 on Pro).
- Plagiarism and AI-text detection — Check originality before you submit or publish (Pro).
- Works across your apps — Browser extensions, desktop apps, mobile keyboard and add-ins.
Grammarly pricing
Pricing model: Freemium · From $12/member/mo · Free plan available
| Plan | Price | Includes |
|---|---|---|
| Free | Free | Spelling and grammar checks, Tone detection, 100 AI prompts per month |
| Pro | $12 / member/month | Full-sentence rewrites and tone adjustment, Plagiarism and AI-text detection, 2,000 AI prompts per member per month, Style guide, brand tone and snippets |
| Enterprise | Custom | Unlimited AI prompts, SAML SSO and SCIM, Data loss prevention and BYOK encryption |
Integrations
Google Docs, Microsoft Word, Gmail, Outlook, Slack, Chrome
Grammarly reviews
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Frequently asked questions
- Is Grammarly free?
- Yes. Grammarly Free includes spelling and grammar checks, tone detection and 100 AI prompts per month. Pro starts at $12 per member per month.
- What does Grammarly Pro add?
- Full-sentence rewrites, tone adjustment, fluency suggestions, plagiarism and AI-text detection, 2,000 AI prompts per member per month and team features such as a style guide and brand tone.
- Can Grammarly write content for me?
- Grammarly can generate and rewrite text from prompts, but it is mainly an editor that improves what you write. For long drafts, many people pair it with a general AI assistant.
- What are Grammarly alternatives?
- Alternatives include ProWritingAid, QuillBot, Wordtune, LanguageTool and Hemingway Editor.