Free Online Grammar Checker

Ensure your writing is mistake-free with the help of this online grammar checker. Paste your text or start typing below to pinpoint grammatical errors, spelling mistakes, and punctuation inaccuracies.
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It’s fast and free. Finish checking your text and create an account to get:
  • Tone and clarity insights
  • Tips on how to engage readers
  • Word choice and inclusive language guidance
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Get Grammarly It's free
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The Number One Grammar Checker Does So Much More

Grammarly cleans up your writing by finding grammatical mistakes, spelling errors, and typos, but it does more than provide an online grammar check. With a Grammarly Premium account, you can access all grammar-checker feedback for your writing and get advanced suggestions that help you improve your writing skills over time.

Instant proofreading

Polish your writing with suggestions that help you quickly fix grammatical mistakes, spelling errors, and punctuation mishaps.
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Full-sentence rewrites

Ensure your message is easy to understand, with suggestions that make your writing clearer and more concise.

Tone suggestions

Build stronger relationships and drive projects forward with tone recommendations that help your words be well received.
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Premium example of fluency suggestions

Fluency suggestions

Get writing feedback tailored to your language background.

Easy paraphrasing

Quickly distill information and find new ways to simplify your own or others’ writing with generative AI paraphrasing and rewriting.
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Writing Assistance in All the 
Right Places

Grammarly works on 500,000+ websites, apps, and browsers across desktop and mobile devices, so you can improve your writing wherever you type.
Slack, ZenDesk, SalesForce and Mail logo

Mac & Windows

Write confidently across your favorite desktop apps and websites, including Microsoft
Word, Gmail, and Slack.

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Chrome, Safari, Firefox, GoogleDocs logos

Internet browsers

Get advanced writing support in Google Docs and other sites on Chrome, Safari, Firefox, and Edge.

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LinkedIn, X, Text, Chat logos


Communicate confidently on the go with Grammarly whether you're texting, emailing, or posting to social media.

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Make Your Writing Exceptional 
With Grammarly Premium

To ensure your writing is impressive, you need to do more than use a sentence checker to correct grammatical mistakes. Grammarly Premium helps your words stand out by providing advanced suggestions to transform your writing so you can better meet your professional or academic goals.


Basic writing suggestions and tone detection

  • Grammar
  • Spelling
  • Punctuation
  • Conciseness
  • Tone detection


Clarity, vocabulary, and tone improvements

  • Everything in Free
  • Full-sentence rewrites
  • Word choice
  • Tone suggestions
  • English fluency

My biggest piece of advice for anyone in college is to download Grammarly. Grammarly catches mistakes you might miss and helps with communicating clearly. Game changer!

Jessica Wythe
PhD Candidate and Grammarly User Since Undergrad

The service goes beyond the basic spell-check and grammar check built into the word processor, as Grammarly can identify correctly spelled words that are used in the wrong context.

Bill Winterberg
Journalist, Atlanta
New York TimesWSJUSA TodayTechCrunchForbes

Frequently Asked Questions

Why is grammar important?

Grammar is important because the clearer your writing is and the fewer grammatical mistakes you make the more effective your words will be. Whether you’re working on an important email, school paper, college application, or business proposal, readability, good grammar, and compelling communication are crucial to success.

How can I write correct English?

To write correctly in English, you need to follow relevant spelling, punctuation, and grammar rules. You’ll also need a working knowledge of the complicated nuances of the English language. Luckily, Grammarly can help with all of this. In addition to helping you correct punctuation mishaps, spelling mistakes, and grammatical errors, Grammarly’s suggestions help you learn fluency and improve your writing over time.

How can I check my grammar online?

Grammarlys online grammar-check tool is a great way to check your English grammar and eliminate mistakes in your writing. Another excellent solution is to get Grammarly Free for your desktop and browser. Grammarly Free gives you instantaneous suggestions wherever your write so you can easily ensure your writing is mistake-free and aligned with English grammar rules.

Does Grammarly check more than just grammar?

Yes! In addition to being a grammar, spelling, and punctuation checker, Grammarly improves the readability of your writing. Grammarly Free helps with conciseness and tone detection and automatically generates citations for you whenever you visit a compatible source site. Grammarly Premium builds upon that with advanced tone and clarity suggestions, plagiarism detection, and 1,000 monthly uses of Grammarly’s generative AI features. With Grammarly checking your writing, you can feel confident your work is polished and your message is communicated clearly, concisely, and powerfully.

Is Grammarly the best grammar checker?

Grammarly is a best-in-class online grammar checker and AI writing partner built by expert linguists. Authors, businesses, professional writers, teachers, students, and others trust Grammarly to make their writing mistake-free and clear. Grammarly conveniently works across multiple platforms and devices with just one account, and it’s easy to use. Once you sign in, it will work wherever you write.

Can I use Grammarly for free?

Yes, you can use Grammarly Free at no cost. We’ll never push ads on you, and we don’t sell your data. Grammarly Free is genuinely free. If you’d like to get advanced suggestions and extra generative AI prompts, you can upgrade to Grammarly Premium. That said, you’re welcome to use Grammarly Free for as long as you like.

More AI Writing Assistance From Grammarly

Grammarly can help you generate drafts, polish punctuation, and work more efficiently so you have more time to focus on big ideas and better communication.

Make Great Writing Simple

Join over 30 million people who use Grammarly every day to make their writing shine.