Grammar Coach™

Your Key to Brilliant Writing

Our AI-backed writing tool helps writers of all kinds produce high-quality, error-free work. From grammar corrections to Thesaurus.com-powered synonym suggestions, Grammar Coach™ ensures every essay, email, and application letter is perfectly written.

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Synonym Swap

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WRITING ASSISTANT

Unlock the power of the most advanced AI-powered grammar tool

Machine learning combined with professional lexicographers and editors means the highest level of corrections for easier, faster, and smarter writing.

Plagiarism Checker

PREMIUM ONLY

Edit your paper and check for plagiarism, all in one place!

Unlimited Characters

PREMIUM ONLY

Write to your heart’s content! Keep writing without constraints.

Inclusive Language

PREMIUM ONLY

We’ll make suggestions to help you avoid bias in your writing.

Tone Detection

PREMIUM ONLY

We make sure your tone strikes the right chord.

Spelling and Grammar

We’ll let you know if your writing has errors, and suggest corrections.

Synonym Swap

We help you find better ways to say each and every word.

Formality

PREMIUM ONLY

We catch informal language, passive voice, and more.

Engagement

PREMIUM ONLY

Don’t worry about overusing words. We catch them all and ensure your writing engages your audience.

13M+

Over 13 million suggestions made.

Over 13 million grammar suggestions made.

Grammar Coach Plans & Pricing

Want writing that truly stands out? Unlock our suite of advanced features and suggestions with Grammar Coach™ Premium.

Premium Pricing

Monthly

$23.99 / mo

$11.99 / mo 50% OFF

Billed as one monthly payment of $11.99.

Select Plan

Best value

Yearly

$19.00 / mo

$9.50 / mo 50% OFF

Billed as one yearly payment of $114.00.

Select Plan

Quarterly

$20.40 / mo

$10.20 / mo 50% OFF

Billed as four quarterly payments of $30.60.

Select Plan

Powered by Machine Learning (and experts, too!)

We’ve combined a powerful machine learning engine with a brilliant team of lexicographers and editors to achieve the strongest grammar algorithm possible. What does that mean for you? The highest quality grammar corrections for easier, faster, smarter writing.

Reviews & Testimonials

This writing tool was helpful for both creative writing and writing essays. It was like having an editor! It checked grammar, spelling, and helped find more elegant words/wording.

There was a lot to like about the writing tool. My favorite part was that I didn't have to try and think about a synonym; it would do it for me.

I loved how it combines synonyms, antonyms, definitions, suggestions, and grammar in one tool! It is much better than Grammarly.

This writing tool was helpful for both creative writing and writing essays. It was like having an editor! It checked grammar, spelling, and helped find more elegant words/wording.

There was a lot to like about the writing tool. My favorite part was that I didn't have to try and think about a synonym; it would do it for me.

I loved how it combines synonyms, antonyms, definitions, suggestions, and grammar in one tool! It is much better than Grammarly.

Frequently Asked Questions

A Grammar Coach subscription makes writing papers, essays, emails, and a whole lot more a whole lot easier! There are two types of Grammar Coach writing tool subscriptions: Grammar Coach Free and Grammar Coach Premium. Your free subscription will give you access to grammar check, spelling help, and synonym suggestions. Unlock even more with a Grammar Coach Premium subscription! Premium takes you to the next level, with its suite of advanced machine learning features backed by the dictionary and thesaurus. From spotting repetitive words to alerting you to informal language, Premium Grammar Coach is that extra set of eyes on every email, essay, and project.

While free plagiarism checkers exist, it's important to consider the limited accuracy of those tools. Our AI-powered plagiarism checker compares your writing against billions of online sources, academic journals, and archives, ensuring all of your work is fresh (and legal). Even better, Grammar Coach provides high-quality grammar corrections for easier, faster, smarter writing.

Grammar Coach checks billions of online sources, helping you avoid the most common types of plagiarism, such as:

Verbatim or direct plagiarism
Paraphrasing plagiarism
Patchwork or mosaic plagiarism
Improper citation and accidental plagiarism

Here are a few types of plagiarism you should also watch out for:

Collusion or sharing
Paid or hired plagiarism
Self-plagiarism

Although not technically illegal in most places, the consequences for committing plagiarism can be serious. If caught committing plagiarism, students may risk failing grades or expulsion, and professionals may be fired and/or ostracized from their professional community. So take the guess-work out of the equation, and let Grammar Coach ensure your work is plagiarism-free (and free of other writing errors, too).

It’s simple! Access your Grammar Coach Premium account, select the purple quote icon in the panel at the top of the screen, and tap the “Check For Plagiarism” button to have your work instantly scanned against billions of sources. We’ll alert you if any of your work contains plagiarized content. A few additional steps you can take to avoid plagiarism include:

Learning the proper way to give credit to sources and to use citations.
Using direct quotes only when you really need to.
Summarizing an author's general point or argument using your own words.