What is Grammarly?
Grammarly checks writing for grammar, spelling, punctuation, tone and clarity as you type, via a browser extension, desktop app, and integrations with tools like Google Docs, Gmail and Microsoft Word. Its generative features (Grammarly's AI assistant) can also draft, rewrite or adjust the tone of text on request. The free tier covers core grammar and spelling checks; Grammarly Premium adds tone and clarity suggestions, plagiarism detection and full-sentence rewrites; Grammarly Business adds team style guides and admin controls. Because it runs inline as you type rather than requiring you to paste text into a separate app, Grammarly tends to fit into an existing writing habit rather than replacing it — it's most commonly used for a final pass on an email, document or social post rather than as the primary drafting tool. That inline positioning is also its main limitation: it reviews what you've already written rather than helping you plan the writing in the first place, which is where a general chatbot or a dedicated outline tool tends to be a better fit.
Best for
- Grammar and spelling correction
- Tone adjustment
- Professional email and document writing
Not ideal for
A genuinely good tool can still be a poor fit for a specific situation — this isn't a list of flaws, it's about who this tool doesn't suit best.
- Writers who want a tool to draft from a blank page rather than edit existing text
- Anyone needing the full suggestion set (tone, clarity, plagiarism) without paying
Key features
- Grammar and spelling check
- Tone detection
- Plagiarism detection
- Browser extension
AI Tool Compass Editorial Score
6.6This is a structured editorial/data score based on publicly verifiable information — not a user rating, a Google rating, an absolute ranking, or a popularity score. It's computed from documented features, pricing accessibility, free plan and integrations, following a documented internal methodology. See our full methodology.
Features
6.7/10
Value
8.0/10
Free plan
10.0/10
Integrations
0.0/10
Pros
- Works inline across most apps and browsers via extension
- Good balance of automation and user control
- Plagiarism detection on paid tiers
Cons
- Full feature set requires a paid plan
- Suggestions occasionally miss context/nuance
Recommended prompts
Recommended workflows
Related guides
Use cases
User reviews
No reviews yet — real user ratings and ratings only appear here once submitted and moderated. Be the first to review Grammarly.
Frequently asked questions
- Is Grammarly free to use?
- The free tier covers core grammar and spelling checks. Tone and clarity suggestions, plagiarism detection and full-sentence rewrites require Grammarly Premium; team style guides and admin controls require Grammarly Business.
- Does Grammarly work outside the browser?
- Yes — beyond the browser extension, Grammarly offers a desktop app and integrations with tools like Google Docs, Gmail and Microsoft Word, so it can check writing across most places you'd normally type.
- Can Grammarly write content for me, not just correct it?
- Its generative AI assistant can draft, rewrite or adjust the tone of text on request, but Grammarly's core strength and most common use remains reviewing and improving writing you've already started, not generating it from a blank page.
Sources & Verification
- Official website
- grammarly.com
- Verification status
- Needs review
- Last verified
- September 2026
- Data source
- General knowledge, not independently re-verified against the vendor's site this session
This tool's pricing and features have not been independently re-verified against the provider's current site. Confirm details on the official website above before relying on them.