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The World’s Best Online Proofreader

Grammarly’s online proofreader automatically detects grammar, spelling, punctuation, word choice and style mistakes in your writing.

Start proofreadingIt’s free

Grammarly quickly and easily makes your writing better.

Proofread Any Text
Grammarly’s online proofreader adapts to whether you need to proofread an academic paper, a business cover letter, a casual email, or even a novel.
Works Anywhere
You Write Online
Our online proofreader works anywhere you write online. Whether it's a Word document, a tweet, an email, or a Facebook post, we've got you covered.
Proofreading For Plagiarism
Grammarly’s online proofreader also checks your text for plagiarism. If Grammarly detects copied content, it generates citations in MLA, APA, and Chicago.
Grammar Checker Review - Garrett
North Dakota, USA
[Grammarly] is by far the most robust online proofreading service that I have ever found, and definitely worth the price of admission.
55

Proofread Your Writing Online With Grammarly

Proofread For 250+ Points of Grammar

Grammarly’s online proofreading tool scans your text for more than 250 advanced grammar rules. Grammarly proofreads for subject-verb agreement, article use, modifier placement, and more! Our online proofreader is fast, accurate, and accessible anywhere.

Proofread Your Word Usage

Proofread for word repetition and enhance your vocabulary with context-optimized synonyms. Our algorithms take into account the frequency and context of your word usage so we can suggest the best alternative word that will help you communicate more clearly.

Contextual Proofreading For Spelling

Even the most eagle-eyed proofreader sometimes misses a mistake, especially misspelled words or commonly confused word pairs such as lose/loose and affect/effect, Grammarly’s automated proofreader spots words that are spelled correctly but used in the wrong context.
Grammar Checker Review - Rhonda
New York, USA
Didn’t expect much from an automated proofreader, but it’s good. Recommend!
55
Grammarly Writing Community

Over 4 million people already use Grammarly to proofread their writing online.

Whether your writing is read by thousands of people online, or simply by close family and friends, checking your grammar is important. Business professionals, bloggers, students, and even professional writers use Grammarly to proofread their writing, so why shouldn't you?

Start proofreadingIt’s free