Free Grammar Checker

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Get Grammarly It’s freeContact SalesLog inGrammar CheckPlagiarism CheckerParaphrasing ToolAI DetectorAI HumanizerFree Grammar CheckerWrite 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.SuggestionsLet's get started.
  1. Step 1: Add your text, and Grammarly will underline any issues.
  2. Step 2: Hover over the underlines to see suggestions.
  3. Step 3: Click a suggestion to accept it.
Sign up to keep goingIt'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
Get Grammarly It's freeAlready have an account? Log in

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 Grammarly Pro, 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.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.Image showing Grammarly's clarity improvement suggestions, emphasizing concise and clear writing.

Clarity improvements

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.Graphic representing Grammarly's tone suggestion capabilities, indicating adjustments for appropriate tone in writing.Screenshot demonstrating Grammarly's fluency suggestions to enhance writing flow and readability.

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.Image showcasing Grammarly's paraphrasing tool, providing alternative wording suggestions for selected text.Get Grammarly It’s free

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.

Grammar (rules)

Grammar guideParts of speechVerb tenses First, second, and third personCapitalization rulesActive vs. passive voiceParallelismCommaNounsSubject complements

Writing

Writing guideSentencesParagraphsThe writing processWriting stylesTypes of writingImprove writing skillsRun-on sentencesSentence fragmentsSynonyms

Spelling & punctuation

PunctuationCommaSemicolon Apostrophe Spell checker Spelling Commonly confused words SemicolonsEllipsisFree punctuation checker

Writing assistance in all the right places

Grammarly works on 1 million+ 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.
Learn MoreChrome, Safari, Firefox, GoogleDocs logos

Internet browsers

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

Learn More →LinkedIn, X, Text, Chat logos

Mobile

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

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.Get Grammarly It’s free
  • Grammar
  • Spelling
  • Punctuation
  • Conciseness
  • Tone detection
For Individuals and Teams

Pro

Clarity, vocabulary, and tone improvements.Get Grammarly Pro
  • 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 WythePhD 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 WinterbergJournalist, AtlantaNew York TimesForbesWSJUSA TodayTechCrunch

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.

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 GrammarlyIllustration of a brain with circuits

More AI writing assistance from Grammarly

Grammarly helps with all aspects of writing. Here are a few other useful tools that can support you.Punctuation CheckerSentence CheckerParaphrasing ToolAI Detector

Make great writing simple

Join over 40 million people who use Grammarly every day to make their writing shine.Get Grammarly It’s free

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