Free AI Proofreader

Get fast, accurate proofreading from the industry-leading AI proofreader. Be confident your writing is mistake-free with instant feedback on grammar, punctuation, spelling, and more.
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What is an AI proofreader?

AI proofreaders review writing, quickly identify mistakes, and offer suggestions to fix them. Proofreading is the final stage of the writing process, focused on correcting issues with grammar, punctuation, spelling, and word choice.

Traditionally, proofreading has been handled by humans. AI speeds up that work. While AI proofreaders streamline the editing process, your final judgment makes the writing truly yours.

How does Grammarly’s AI proofreader work?

Grammarly’s AI proofreader scans your writing in real time to identify and correct grammar, spelling, punctuation, and word choice mistakes. Just type or paste your writing in, and it automatically highlights potential problems with underlines. Hover to see smart, context-aware suggestions, and click to apply them instantly. Powered by advanced AI, Grammarly helps you polish your writing quickly and effortlessly, so you can be confident your work is clear, mistake-free, and ready to share.
Proofreader product example

Go beyond proofreading with Grammarly

Grammarly goes beyond proofreading. It quickly catches grammar mistakes, spelling errors, and typos to clean up your writing, but it also offers advanced suggestions that help you grow as a writer over time. With Grammarly Pro, you get full proofreading feedback plus insights to strengthen your skills with every draft.

Quickly identify and correct mistakes

Polish your writing with suggestions that help you fix grammar, spelling, and punctuation errors with ease.
Grammarly flags "less" in "Our team has less projects this quarter," noting that "less" doesn’t fit with the countable noun "projects." It suggests using "fewer" instead: "Our team has fewer projects this quarter.

Make the right impression

Express yourself clearly and confidently with tone suggestions that help your message sound the way you intend.
Graphic representing Grammarly's tone suggestion capabilities, indicating adjustments for appropriate tone in writing.

Get your message across

Make sure your message is easy to understand with suggestions that make your writing clearer and more concise.
Image showing Grammarly's clarity improvement suggestions, emphasizing concise and clear writing.

Writing support tailored for multilingual speakers

Write confidently with fluency suggestions that help you avoid common English writing issues.
Screenshot demonstrating Grammarly's fluency suggestions to enhance writing flow and readability.
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Docs: Your thinking space and writing space, finally in one place

Introducing docs, a new AI writing surface and document editor that offers real-time support at every stage of your writing—from first draft to final delivery.

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See why people prefer Grammarly

95%
of professionals say Grammarly helps them create more professional, polished writing.
93%
of professionals report that Grammarly helps them get more work done.
98%
of students using Grammarly report that it saved them time in writing and editing their school work.
94%
of students say Grammarly Pro helped improve their grades.

Who can use Grammarly’s AI proofreader?

Grammarly’s AI proofreader is helpful for anyone who wants help making sure their writing is mistake-free.
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Students

Save time polishing writing for essays, reports, and assignments.
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Professionals

Maintain your authority and credibility with clear, error-free emails, reports, and presentations.
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Educators

Save hours on prep and grading with instantly polished syllabi, assignments, and feedback.
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Journalists

Hit every deadline with publication-ready copy that’s accurate, clean, and mistake-free.
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Marketers

Scale your content with flawless messaging from headline to CTA.
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Content Creators

Share with confidence that your posts, scripts, and captions are free of distracting mistakes.
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Customer Support Teams

Build trust with clear, helpful, and mistake-free communication.
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Writers and Authors

Publish confidently with manuscripts polished to perfection.

Writing and proofreading resources

Get expert guidance for all of your proofreading questions. From comma splices to passive voice, Grammarly has you covered.

Works where you write

Grammarly works in 500,000+ apps, websites, and programs to help you improve your writing without breaking focus or toggling tabs.

Gmail, Outlook, Google Docs, Word, LinkedIn, Excel, Slack, PPT

Frequently Asked Questions

Why is proofreading important?

Proofreading is your final chance to make sure your writing is clear, effective, and free from mistakes. For academic writing, proofreading helps eliminate errors that could harm your grade. Professionals need proofreading to ensure their writing reflects their authority and credibility.

Why should I use an AI proofreader?

AI proofreaders help you quickly correct sentence-level mistakes. Many go beyond grammar, spelling, and punctuation to offer suggestions to improve the clarity of your writing.

Do I need a human proofreader in addition to Grammarly’s AI proofreader?

We recommend supplementing any AI proofreader with a human evaluation of your writing. While AI proofreaders are well-suited to quickly identify and correct grammar, spelling, and punctuation mistakes, they lack the understanding of context and tone that humans provide.

Does Grammarly do more than proofreading?

Yes! Grammarly offers a suite of free AI-powered writing tools that assist with tasks like generating ideas, improving clarity, and polishing your drafts. Using advanced AI, these tools analyze your text, suggest improvements, and streamline your writing process.

Is my text private and secure when using the AI proofreader?

Absolutely. Grammarly encrypts all data in transit and at rest using industry-standard protocols. Your text is never shared with third parties, and you can delete your documents from our servers at any time.
Learn more about Grammarly’s commitment to responsible AI.

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Make great writing simple

Join over 40 million people who use Grammarly to transform their writing every day.

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