Grammarly

What it does

Grammarly reads the text you write or paste and returns suggestions on grammar, clarity, structure and tone, plus full-sentence and paragraph rewrites. It can also generate text from prompts. Its newer Docs editor adds task-specific agents: Proofreader, Paraphraser, Humanizer, AI Detector, Plagiarism Checker, Citation Finder, Reader Reactions and an AI Grader that gives rubric-based feedback and an estimated grade.

People use it to polish emails, essays, resumes, reports and proposals, either in the Docs editor at app.grammarly.com or through the classic experience inside other writing tools. Reader Reactions shows how a draft may land with an audience, and team plans add brand tones and a style guide. The company states it does not sell user content or let third-party providers train on it; users can opt out of training use.

It suits students, professionals and teams who write in English. A free account is the starting point; Pro adds sentence rewrites, tone adjustment, AI and plagiarism detection and a larger prompt allowance. Docs is desktop-only in the browser, English-only, and does not yet support real-time collaboration. Some agents are limited to paid plans, and Enterprise is arranged through sales.

What it can do

• Proofread grammar, clarity and structure
• Rewrite sentences and paragraphs and adjust tone
• Generate text from AI prompts
• Detect AI-generated text and check plagiarism
• Find sources and generate citations
• Preview reader reactions and get rubric-based AI grading

Example workflows

Polish an essay for a class

Input: a draft essay and rubric. Steps: open a new doc in Docs, run Proofreader, use AI Grader for rubric-aligned feedback, then Citation Finder to add sources. Output: a revised draft with citations and an estimated grade to guide edits.

Tune a customer message

Input: a drafted reply or sales pitch. Steps: check tone suggestions, view Reader Reactions, and rewrite weak sentences. Output: a clearer message adjusted for the intended audience.

Before you choose

• Docs is English-only, desktop-only and lacks real-time collaboration for now.
• Free includes 100 AI prompts; Pro 2,000 prompts per member per month, and some agents need Pro.
• Training on your content can be opted out by users; some business and EU/UK accounts are excluded from training automatically.

Listed under

• Productivity
• Writing and docs
• AI writing
• AI writing assistant
• Enterprise
• Grammar
• Grammar checker
• Plagiarism check

Get started

Create an account; Pro via upgrade page.

1. Sign up for a free account with email or Google.
2. Open app.grammarly.com and click New doc to use Docs, or choose classic docs.
3. Compare plans on the pricing page and upgrade to Pro if you need rewrites, tone and detection features.

Pro is $12 per member per month billed annually, or $30 per month billed monthly. Free is $0 with 100 AI prompts per month. Enterprise pricing not shown.

Source: grammarly.com, checked 29 Oct 2026. Prices can change; check before you buy.

Sources for this overview

Product pages, documentation, and pricing checked 29 Oct 2026. Each source supports part of the overview; availability and prices can change.

• Grammarly: Free AI Writing Assistance ↗www.grammarly.com
• Grammarly Prices and Plans | Grammarly ↗www.grammarly.com
• Grammarly Docs | All-in-one AI Document Editor ↗www.grammarly.com

Company website

grammarly.com: product, pricing and policy pages

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Last checked 29 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.