Free Grammar Checker
Write with confidence using Grammarly’s AI-powered grammar checker. Harness advanced AI to spot grammatical errors, spelling mistakes, and punctuation issues while refining clarity and enhancing your writing style.
The Number One Grammar Checker Does So Much More
Grammarly catches grammar mistakes, spelling errors, and typos. With Grammarly Pro, you get advanced suggestions to help you grow as a writer.
Bring transparency to
your work
Using a variety of text sources in your content? Grammarly Authorship automatically categorizes your text based on where it came from (AI, an online database, typed by you, etc.) so that you can easily show your work and confidently submit your most original writing.
Learn more about Authorship
Learn more about Authorship
Authentic authorship
Make it easy to disclose
your AI use
Grammarly's transparency features, such as AI checker, make it easy to acknowledge when you've used AI so you can submit work with integrity.
Be sure that your work is
one of a kind
Grammarly helps you check your content for potential plagiarism and AI use, so you can rest assured that what you're submitting is your original work.
Get fully formatted citations in seconds
Use Grammarly Authorship in Microsoft Word and Google Docs to insert properly formatted citations with the click of a button—all without having to leave your document.
Bring transparency to
your work
Using a variety of text sources in your content? Grammarly Authorship automatically categorizes your text based on where it came from (AI, an online database, typed by you, etc.) so that you can easily show your work and confidently submit your most original writing.
Learn more about Authorship
Learn more about Authorship
Authentic authorship
Make it easy to disclose
your AI use
Grammarly's transparency features, such as AI checker, make it easy to acknowledge when you've used AI so you can submit work with integrity.
Be sure that your work is
one of a kind
Grammarly helps you check your content for potential plagiarism and AI use, so you can rest assured that what you're submitting is your original work.
Get fully formatted citations in seconds
Use Grammarly Authorship in Microsoft Word and Google Docs to insert properly formatted citations with the click of a button—all without having to leave your document.
The basics behind good grammar
Wondering where to place a comma, how to handle capitalization, or how to avoid run-on sentences? These articles from our extensive resource library are here to help you learn about English grammar rules.
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.
Mac & Windows
Write confidently across your favorite desktop apps and websites, including Microsoft
Word, Gmail, and Slack.
Learn More
Learn More
Internet browsers
Get advanced writing support in Google Docs and other sites on Chrome, Safari, Firefox, and Edge.
Learn More →
Learn More →
Mobile
Communicate confidently on the go with Grammarly whether you're texting, emailing, or posting to social media.
Learn More
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Make your writing exceptional
with Grammarly Pro
To ensure your writing is impressive, you need to do more than use a sentence checker to correct grammatical mistakes. Grammarly Pro helps your words stand out by providing advanced suggestions to transform your writing so you can better meet your professional or academic goals.
For Individuals
Free
Basic writing suggestions and tone detection.
- Grammar
- Spelling
- Punctuation
- Conciseness
- Tone detection
For Individuals and Teams
Pro
Clarity, vocabulary, and tone improvements.
- Everything in Free
- Full-sentence rewrites
- Word choice
- Tone suggestions
- Fluency suggestions
- Plagiarism detection
“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
“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
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?
Grammarly’s 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! Grammarly goes beyond just grammar, spelling, and punctuation. It uses advanced AI to improve the readability of your writing and enhance your communication. Grammarly Free helps with conciseness and tone detection, offering 100 monthly uses of generative AI and automatically generating citations when visiting compatible source sites. Grammarly Pro builds on this with advanced tone and clarity suggestions, plagiarism detection, and up to 2,000 monthly uses of Grammarly’s generative AI features. With Grammarly, you can be confident that your writing is polished, clear, and impactful.
Is Grammarly the best grammar checker?
Grammarly offers AI writing assistance that goes far beyond basic grammar checking to improve people’s writing. Trusted by authors, businesses, educators, and students worldwide, Grammarly is designed by expert linguists and engineers to help you improve clarity, tone, and style in your writing while correcting mistakes.
Powered by responsible AI, Grammarly prioritizes your privacy and security. Your writing is never publicly searchable or accessible to others. With a strong commitment to ethical AI practices, Grammarly ensures its tools are designed to empower users while safeguarding their trust.
Grammarly offers extensive integrations, making it easy to enhance your writing wherever you go—all with just one account.
Powered by responsible AI, Grammarly prioritizes your privacy and security. Your writing is never publicly searchable or accessible to others. With a strong commitment to ethical AI practices, Grammarly ensures its tools are designed to empower users while safeguarding their trust.
Grammarly offers extensive integrations, making it easy to enhance your writing wherever you go—all with just one account.
Can I use Grammarly for free?
Yes, you can use Grammarly Free at no cost. We don't run ads within the product and we don't sell your data. If you'd like advanced writing suggestions and extra generative AI prompts, you can upgrade to Grammarly Pro at any time.
Does Grammarly offer other free AI writing tools?
Yes! Grammarly provides a range of AI-powered writing tools, including:
- Grammar Checker—Catch and correct grammar, spelling, and punctuation mistakes.
- Plagiarism Checker—Detect potential plagiarism and add citations.
- Cover Letter Generator—Quickly create professional cover letters.
- AI Content Detector—Identify AI-generated text in your writing.
Advanced AI that transforms your writing
Grammarly streamlines every step of the writing process—from brainstorming to final edits—ensuring clear, confident, and efficient communication.
Learn more about AI at Grammarly
Learn more about AI at Grammarly
More AI writing assistance from Grammarly
Grammarly helps with all aspects of writing. Here are a few other useful tools that can support you.
Make great writing simple
Join over 40 million people who use Grammarly every day to make their writing shine.