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Why this is the best free grammar checker

Most accurate

In the test for the best grammar checkerScribbr found 19 out of 20 errors.

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Start instantly—no registration or sign-up required. Simply insert your text and begin right away.

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Unlimited text length—whether long or shortthere’s no character or word limit.

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Enjoy an ad-free experience—no waiting for ads or distractions. The AI grammar checker is completely ad-free!

Fix all writing errors with our advanced grammar checker

Enhance your writing with Scribbr’s free Grammar Checker. We can help you to avoid mistakes with:

Grammar
Spelling
Punctuation
Word choice
And more—try it yourself!

We are also happy to provide personalized help with our professional proofreading service.

Correct your grammar

Improve your writing and grammar with just one click.

The Scribbr Grammar Checker quickly fixes common grammatical errorsincluding:

Sentence fragments & run-on sentences
Subject-verb agreement errors
Issues with parallelism
And more—try it now!

Spell-check on steroids

Spelling may seem straightforwardbut basic spell-checks often don’t recognize many specialist terms you might use in your writingincorrectly marking them as mistakes.

Scribbr has a large dictionary of recognized wordsso you can feel confident every word is 100% correct.

Check your punctuation

Our advanced AI grammar checker helps you avoid common punctuation mistakesincluding:

Commas
Dashes and hyphens
Apostrophes
And more!

Avoid word choice errors

Should you use “affect” or “effect”? Is it “then” or “than”? Did you mean “there,” “their,” or “they’re”?

Never worry about embarrassing word choice errors again. Our grammar checker will spot and correct any errors with commonly confused words.

Correct your entire document in 5 minutes

Would you like to upload your entire document and check all your documents for 100+ language issues? Then Scribbr’s AI-powered proofreading is perfect for you.

With AI-powered proofreadingyou can correct your text and get a free citation check:

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Wait briefly while all errors are corrected directly in your document
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Improve your text with one click

The Scribbr Grammar Checker allows you to accept all suggestions in your document with a single click.

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A Grammar Checker for all English variants

There are important differences between the versions of English used in different parts of the worldincluding UK and US English. Our grammar checker supports a variety of major English dialects:

US English
UK English
Canadian English
Australian English

Why users love our Grammar Checker

🌐 English	USUKCA& AU
🏆 Quality	Outperforms competition
✍️ Improves	Grammarspelling& punctuation
⭐️ Rating	4.5 based on 15,401 reviews

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Scribbr & academic integrity

Scribbr is committed to protecting academic integrity. Our plagiarism checker AI Detector Citation Generator proofreading services paraphrasing tool AI Humanizergrammar checkersummarizerand free Knowledge Base content are designed to help students produce quality academic papers.

We make every effort to prevent our software from being used for fraudulent or manipulative purposes.

Explore our collection of grammar guides and tips

Grammar

Writing

Spelling & Punctuation

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Questions?

Frequently asked questions

See all

What can you do if the grammar checker finds an error that’s not really an error?: If our grammar checker flags an error that is not actually an erroryou have several options:

1. Ignore the error: Most grammar checkers allow users to skip or ignore suggestions they do not agree with or find irrelevant. If you are confident that the flagged “error” is not an issueyou can bypass the suggestion and move on to the next one.

2. Review the context: Take a moment to thoroughly review the context surrounding the flagged error. Sometimesthe initial correct usage might still create confusion or ambiguity within the specific contextand reconsidering the phrasing could improve overall clarity.
Does this grammar checker do more than fix grammar mistakes?: Yesthis grammar checker covers the following mistakes:

1. Grammar: Correction of grammatical errors such as subject-verb agreementtense usageand sentence structure

2. Spelling: identification and correction of spelling errorsincluding typos and commonly confused words.

3. Punctuation: Detection and rectification of punctuation errorsincluding incorrect use of commasperiodscolonsand other punctuation.

4. Word choice errors: Catch words that sound similar but aren’tlike their vs. they’re and your vs. you’re.
Can I use this grammar checker for free?: Yes. There’s no sign up or payment required to use the grammar checker.
Can I check my emailsocial media or any other communication to see if there are any grammar mistakes?: Yes. The grammar checker fixes any textno matter what the medium is.
What makes the Scribbr spell check unique?: The Scribbr grammar checker finds more errors than many other tools and is particularly user-friendly:

Winner: In our test comparisonthe Scribbr grammar checker found 19 out of 20 errorsputting it in first place.

No registration required: You don’t need an account to use the grammar checker.

No limits: There is no character or word limit.

Ad-free: There is no advertising on Scribbr to distract from the tool.

For more detailsfeel free to read our test of the best English grammar checkers.
What technology is used to power our Grammar Checker?: The Grammar Checker on our page is powered by the QuillBot servicewhich uses advanced language processing technology.

Both Scribbr and QuillBot are LearneoInc. servicesensuring that your inputs are processed in accordance with Learneo’s Privacy Policy.

For moreplease read the QuillBot section of the Learneo Privacy Policy. Your use of our Grammar Checker is subject to QuilBot Terms.
How to check grammar?: To check grammar using Grammar Checkersimply copy and paste your text into the tool. It will automatically highlight grammarspellingand punctuation errors. Review the suggestions and apply corrections to improve your writing.