Grammarly is an AI writing assistant that proofreads, rewrites and suggests tone as you write.

Does Grammarly keep my voice?

Grammarly says its suggestions help you strike the right tone without losing your authentic voice. Read each one before you accept it.

What does the AI Detector do?

Grammarly says its AI Detector agent spots AI-generated text and areas to revise. Treat such a result as a prompt to look again, not as proof.

What does Grammarly say about my content?

Grammarly says it does not sell or monetize user content, provide it for advertising, or allow third party providers to train their models on it. Read its privacy policy for the detail.

Grammarly: what it does and how to learn it

Grammarly

Grammarly is an AI writing assistant. Its own pages describe paragraph rewrites, tone suggestions, proofreading, and agents that humanize writing and detect AI-generated text.

Open Grammarly ↗Watch and learn Common questions

What Grammarly does

Rewrites a paragraph for clarity and flow.
Suggests tone changes to suit the context.
Proofreads for grammar, structure and clarity.
Offers a Humanizer agent and an AI Detector agent that flags AI-generated text and areas to revise.
Works inside the apps and sites where you write, on desktop, browser and mobile.

What people use it for

Tighten an email
Paste your draft, keep your voice and cut what is wordy.
Match the tone
Check how a message reads to your audience before you send it.
Review your own writing
Use the suggestions as a second reader, and decide each one yourself.

Who it suits

Anyone who writes for work and wants a second pair of eyes on clarity and tone.
Teams that want a consistent brand style across what they write.

Plans and access

Grammarly offers a free plan and paid plans for individuals and teams. Plans, prompt limits and regional availability change, so read Grammarly’s current page. Grammarly says it does not sell or monetize user content, or let its third party service providers train their models on it.

How to start

1Open Grammarly and sign up. Open
2Add it where you write most, such as your browser.
3Run a real draft through it and accept only the suggestions you agree with.
4Try a tone suggestion on a message that matters, and compare it with your original.

Watch and learn

Videos from Grammarly’s own channel, so you can learn it here. Nothing loads from YouTube until you press play. More on the Grammarly channel.

Grammarly · 2022
What Is Grammarly?
Open on YouTube
Grammarly · 2022
Grammarly Basics: What You Can Get for Free
Open on YouTube
Grammarly · 2025
Check Your Work for AI With Grammarly’s AI Detector
Open on YouTube

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Common questions about Grammarly

What is Grammarly?: Grammarly is an AI writing assistant that proofreads, rewrites and suggests tone as you write.
Does Grammarly keep my voice?: Grammarly says its suggestions help you strike the right tone without losing your authentic voice. Read each one before you accept it.
What does the AI Detector do?: Grammarly says its AI Detector agent spots AI-generated text and areas to revise. Treat such a result as a prompt to look again, not as proof.
What does Grammarly say about my content?: Grammarly says it does not sell or monetize user content, provide it for advertising, or allow third party providers to train their models on it. Read its privacy policy for the detail.

Where this comes from

Written from the maker’s own pages, read on 2026-10-13. Plans, limits and features change, so the page you land on is the source.

Each tool links to its maker’s own page. They are listed so you know what exists and what to learn, not ranked, and they are not endorsements. We are not affiliated with these companies. A tool can change or be renamed; the page you land on is the source.