Grammarly
The everyday editor that follows you into every app you write in.
About
Grammarly is a writing assistant that checks grammar, spelling, punctuation, clarity and tone wherever you type, from browsers and documents to email and mobile keyboards. Unlike pure drafting tools, it starts from text you have already written and helps you improve it. A genuinely useful free plan makes it the easiest starting point in this category.
Key features
- Real-time grammar, spelling and punctuation checks across browser, desktop and mobile
- Tone detection and clarity suggestions that tighten wordy or awkward sentences
- Full-sentence rewrites and tone adjustments on the Pro plan
- Plagiarism checking and AI-generated text detection on Pro
- A monthly allowance of generative AI prompts for drafting and rewriting help
- Style guides and a shared brand tone for teams on Pro
- Integrations with documents, email, word processors and everyday writing apps
Pricing
Free plan $0; Pro plan $30 per member per month, or $12 per member per month billed annually ($144/year); Enterprise custom pricing
Prices change — check the official pricing page before buying.
Best for
Anyone who writes daily emails, documents and messages and wants cleaner, more confident English.
Limitations to know
Grammarly polishes writing rather than guaranteeing truth, so it can miss errors, suggest changes that alter meaning, and its AI features can produce generic or incorrect text. Human judgement still decides whether a suggestion fits the context, the audience and the facts.
What users like
- Reliable catching of typos and grammar mistakes in everyday writing
- Easy to use across many apps, with corrections appearing where you already write
- Clearer, more confident writing, especially for non-native English speakers
- A free plan that is genuinely useful rather than a hollow demo
What users complain about
- Suggestions that are occasionally wrong or that change the intended meaning
- Frequent prompts and pop-ups that some users find intrusive
- Billing and cancellation frustrations, including unexpected renewal charges
- Advanced features locked behind the paid plan
Our editorial score
Our editorial score: 8.6/10 — our own judgement, not an aggregate of user ratings. See the full review for the reasoning.
Read the full Grammarly review · More Writing tools · All AI tools