Best Plagiarism Checker & Proofreader

Grammarly is an automated proofreader and plagiarism checker.
It corrects up to 10 times as many mistakes as other word processors.

Context-Optimized Vocabulary Suggestions

Improve word choice with context-optimized vocabulary suggestions

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Checking for: Preposition use at the end of sentences

For years I have been driving an old used car with a lot of mileage and I hate it. It gets me where I need to go, but I’m tired of fixing leaks and broken parts all the time. Its annoying every times I need to take it to the mechanic. Even when they take care of everything, I know I’ll just end up going back there in a few weeks. I have finally decided that I am not going to do it anymore. I have decided to buy a new car! Unfortunately, I have a problem. I have no idea what car to get. Do I want something fast? Do I want something big? Do I want something stylish? Something economical? I have so many choices that I don’t even know where to begin. I am not sure if I will be able to make the decision on my own. I don't have not a lot of money, either, so I probably don't have many options. After I did some research, I knew that I would need some expert advice. Eventually, I went to a local dealership to check out some new models. I talked to the saleswoman and listened at she carefully. Her honesty and professionalism were really impressive. She had a lot of vary helpful suggestions and showed myself some safe affordable choices. After a long discussion I finally decided which one I wanted. She not only helped me with the paperwork and finished the sale, but also the insurance. I was expecting this purchase to be a serious hassle, but the experience was almost painless. Everything went smoothly, and now I have a brand new car! I was so excited when I pulled out of the lot that the first thing I did was change lanes right in front of other car. “That wasn't very nice,” I thought to myself. I needed to relax. I didn’t realize what a serious mistake I had made however. I hadn’t just cut off any other car, I had cut off a police car! It took a few seconds to realize what was happening when I saw the flashing lights in my rearview mirror. By the time I had managed to pull over, my heart was racing. I gathered all the paperwork as he approached my window. “You forgot to signal back there” said Officer Johnson, according to his nametag. “Yes, well, it’s a new car so I guess I was a bit unfamiliar with the controls,” I stammered. He looked at me skeptically. “I’m pretty sure the controls for the turn signal are in the same place on every car.” What could I say? He was right. “I’m sorry,” I ventured. He looked over my paperwork and noticed that the car was new. “It would be unfortunate to get a ticket on your first day in a new vehicle,” he said, smiling. “Try not to cut in front of anyone on your way home.” I had never felt so relieved in my life. “Thank you, officer!” As he made his way back to his car I let out a huge sigh. I took a few seconds to compose myself before shifting into gear and driving away from the side of the rode. Now I have a brand new car and a story to tell!
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Instantly find and correct over 250 types of grammatical mistakes.

Automatically generate citations using MLA, APA and other styles

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Grammarly provides another set of eyes to help perfect your writing. Grammarly’s patent-pending grammar checking technology reviews and improves your text, correcting grammar, spelling, word choice and style mistakes with unmatched accuracy. Give Grammarly 60 seconds, and see what pesky grammar errors you missed in your text!

Check Over 250 Points of Grammar

Lightning-fast, Grammarly scans your text for proper use of more than 250 advanced grammar rules, spanning everything from subject-verb agreement to article use to modifier placement. Skip out on those clunky grammar handbooks and trying to grammar check your own work — Grammarly is always at the top of the grammar game and accessible anywhere, ready to make your writing error-free.

Improve Any Text

Academic, professional, and creative writing require unique styles of editing. Grammarly’s technology adapts to your writing needs, ensuring that no matter what your project may be, your grammar is impeccable. Just choose the genre of writing you need edited, and voilà! How might you utilize Grammarly’s proofreading prowess?

Students and Academia
Proofread essays and academic papers
Polish emails, memos and proposals
Job Applicants
Edit resumes and cover letters
Authors and Writers
Proofread editorial copy, blog posts, and stories
English Learners and Native Speakers
Spell check, improve text and writing skills
Medical and Technical Writers
Grammar check medical reports, product descriptions and white papers

Rhonda Hurwitz Marketer
New York, USA

“Used Grammarly to check website copy for grammar, spelling etc. Didn’t expect much from an automated proofreader, but it’s good. Recommend!”

Alison Doyle
Saratoga Springs, USA

“[Grammarly is] definitely catching more mistakes than when I just used Word’s spell and grammar checker. Now, I use Microsoft Word’s checker first, then run Grammarly to catch the rest of my errors.”

Abigail Adjetey Radio show host
Ontario, Canada

“Thank you again Grammarly for the essay edits! I am acing English Literature and Speaking and Presentation skills…”

Context Optimized Synonyms

Words can make an impact, or they can fall flat. Enhance your sentences with Grammarly’s word choice suggestions that optimize for the context of your document. Readability and meaning are improved instantly.

Adaptive Spell Checker

Correctly spelled words used in the wrong context mean embarrassing mistakes for you. Grammarly spots erroneous use of lose/loose, affect/effect, lie/lay, there/their/they’re, and many more commonly confused words.

Plagiarism Detection & Citations

Grammarly finds unoriginal text before it gets you into trouble by checking for plagiarism against a database of over 8 billion web pages. Grammarly not only brings borrowed texts to light but also suggests citations.

Find Errors That Microsoft® Word Can’t

Grammatical mistakes that go unnoticed by popular word processors and other grammar checker programs are caught by Grammarly. Here are some examples:

Review this sentence for comma use.

Review this sentence for commonly confused words. Ensure you do not confuse similar words with different meaning. Suggested correction: The philosopher did not speak aloud often.

Contextual Spelling
The philosopher did not speak allowed often.

Review this sentence for commonly confused words.

Ensure you do not confuse similar words with different meaning.

Suggested correction:

The philosopher did not speak aloud often.

Presenting your ideas effectively improves communication.

Review this sentence for squinting modifiers.

It may be unclear what the modifier “effectively” is defining in this sentence. Make sure it is clear which word or phrase is being defined.

Be careful for the ice, the steps are slippery!

Review this sentence for preposition misuse.

Your sentence may use “for” after “to be careful”. Please re-read your sentence and ensure you have used the correct preposition.

“Let's go outside” said the boy.

Review this sentence for comma use.

Ensure there is a comma between direct quotes and the attributive tag. The attributive tag, (“said”), should be separated from the quote by a comma; consider inserting one.

Do you want more or less apples?

Review this sentence for quantifier usage.

The quantifier “less” may not be appropriate for the noun which it modifies. Clearly identify the noun as countable or uncountable, and consider changing the quantifier, as appropriate.

Cassandra Lewis Blogger
United Kingdom

“A great piece of software for aspiring writers — correct errors in your written work with Grammarly!”

Tania Sterling
Educational executive
Ontario, Canada

“Used Grammarly to proofread half of my doctoral proposal last night. An unbelievable tool worth checking out for anyone’s academic writing!”

Susruth Anvesh Researcher
Hyderabad, India

“Grammarly is an awesome online proofreading tool. I like it. Almost every doc I create, I run through Grammarly.”

Use Anywhere
(and Everywhere!)

As a web-based application, Grammarly is available from any browser, with no download required. Grammarly also integrates seamlessly with the Microsoft® Office Suite, including Word and Outlook.

Improve Your Writing Skills

Like an English tutor, Grammarly identifies your most common mistakes and helps you understand how to avoid them, ensuring you are constantly building your grammar skill set.

Instant Results

Deadlines aren’t a problem here. Grammarly instantly proofreads your text and pinpoints areas for improvement so you don’t have to worry about looking for a proofreading buddy when it’s crunch time.

Fanatical Support

We love making fantastic products and talking to our users about their experiences. Our support representatives are available 24/7 to answer any questions you have about Grammarly.

Grammarly is an automated proofreader and your personal grammar coach.
Check your writing for grammar, punctuation, style, and much more.

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Jason Whitney
San Francisco, USA

“If you’re in school or you just write a lot in general, you need to get @Grammarly. This thing is life-changing.”

Andrew Dorsey
Entrepreneur, student
Florida, USA

“Thank you — you helped me get a 97 on my first major paper of the new semester!”

Fawn VolkertConsultant
Florida, USA

“Perfectionist tip of the day: Use — but understand it is not your boss!”