Grammarly is an AI-powered writing assistant that checks grammar, spelling, punctuation, clarity, conciseness, tone, and plagiarism, and follows the user across the places they write, including browsers, desktop apps, mobile keyboards, and Microsoft Office. Beyond error correction it offers style suggestions, tone detection with adjustment prompts, vocabulary enhancement, and goal-setting for audience, formality, and intent. It suits proofreading blog posts and web copy, keeping emails and customer messages professional, checking ad and social copy for tone, and holding a consistent brand voice. A capable free tier covers grammar, spelling, and punctuation, while Premium and Business tiers add style, tone, clarity, and plagiarism checks, with Premium typically starting around $12/month billed annually.
Grammarly is an AI-powered writing assistant that checks grammar, spelling, punctuation, clarity, conciseness, tone, and plagiarism, and it follows you across the places you write — browser, desktop, mobile keyboard, and Microsoft Office.
Core capabilities
- Real-time grammar, spelling, and punctuation checks.
- Style suggestions for clarity, conciseness, and engagement.
- Tone detection with adjustment suggestions.
- Plagiarism detection (Premium), vocabulary enhancement, and goal-setting for audience, formality, and intent.
- Browser extensions, desktop apps, mobile keyboards, and Office add-ins.
Where it fits. Proofreading blog posts, articles, and web copy before publishing; keeping emails and customer messages professional; checking ad and social copy for tone; and holding a consistent brand voice across written communication.
Pricing. A capable free tier covers grammar, spelling, and punctuation. Premium and Business tiers add style, tone, clarity, and plagiarism checks; Premium typically starts around $12/month billed annually. Confirm current pricing on the site.
Practical notes. Treat it as a safety net, not an oracle — apply judgment on stylistic suggestions rather than accepting all of them. The tone detector is genuinely useful for matching intent, and goal-setting tailors suggestions. The free tier is valuable; Premium meaningfully raises the ceiling for professional work. It pairs well with a readability editor like Hemingway, which targets different problems.
Direct link: https://www.grammarly.com/
- AI writing assistance
- Grammar and style checking
- Tone detection and adjustment


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