Remember that Grammarly quiz I shared last month in celebration of Grammar Day? Well, around the same time, the good people over at Grammarly offered me a free trial of their grammar checker as a gift for the occasion! Naturally, it was the perfect opportunity to try it out and write a review on it for my Writer’s Toolkit segment. After all, even the best writers need a little help checking their spelling and grammar, right?

So without further ado, here is my review of the Grammarly grammar checker. Enjoy!

About Grammarly

Grammarly, or the Grammarly®Editor, is a spelling and grammar checker that automatically proofreads text in English. According to the site’s product page, Grammarly “corrects contextual spelling mistakes, checks for more than 250 common grammar errors, enhances vocabulary usage, and suggests citations”. Aside from its primary function as a proofreader, the editor also features a thesaurus that suggests improvements on word choice and a plagiarism checker that compares text with over 8 billion pages on the Web.

Grammarly offers a few features for free, such as the quick grammar checker on their home page and the Google Chrome plugin that automatically checks any text you type in your browser. The full version can be accessed via premium subscriptions of $29.95/month, $59.95/quarter ($19.98/month), or $139.95/year ($11.66/month).

My free trial of Grammarly lasted for one month, during which time I used it to proofread my stories and blog posts. I also installed the Grammarly plugin on my Google Chrome browser, which for the purposes of this review is considered an extension of the full proofreader on the Grammarly website. Since I work on a Mac, I was not able to test the Microsoft Office add-in.


The first thing I noticed when I started using the Grammarly proofreader is that it doubles as a teacher. When the editor catches an error, it doesn’t just tell you that it’s wrong; it tells you why it’s wrong. This is immensely useful for learning about mistakes you didn’t even know you were making so you can avoid making them again. I’ve already learned a couple of grammar rules myself! Explanations include examples of correct and incorrect uses, and a fun little bonus is the score in the bottom right corner that evaluates how grammatically correct your text is overall. It’s like having your own private grammar tutor!

Another handy feature is the vocabulary enhancement thesaurus. The editor flags words it finds too common or repetitive and suggests replacements that may improve the quality of the text. It can also check a document against pages across the Internet to identify possible plagiarism, and while I confess that I only tested this a few times, it seems to work fairly well. Both of these features can be toggled on and off, which makes them optional additions to an already powerful proofreading tool. And yet another bonus is the preset configuration list for types of documents ranging from formal to creative writing, so you can actually teach the editor what sorts of errors you want it to focus on when proofreading your text!

The Google Chrome plugin also deserves an honorable mention, as it brings all of Grammarly’s features to any web page on which you write. When you type into a text box, an icon appears in the corner and automatically updates a number to indicate how many errors are being detected as you type. Hovering over this icon will open a small tab that shows you how many advanced and critical errors are in your text at the moment, and clicking in this tab or on the explanations that appear when you hover over underlined errors will open the Grammarly editor directly on the page, so you can edit your text without having to navigate away. It even seems to learn your writing style the longer you use it. That’s pretty neat!

The Grammarly®Editor, online version


It’s worth noting at this point that the gentleman who set me up with my free trial of Grammarly mentioned its usefulness as more of a “second set of eyes” as opposed to a replacement for a professional proofreader. After trying it out a few times, I quickly realized what he meant. The proofreader points out whatever it believes may be an error, but it can’t always take the full context of the document into account. Sometimes it incorrectly marks an alternative grammar choice as an error, and other times it misreads the context and lets a mistake slide. This issue was already thoroughly covered in a review by Grammarist, so I won’t go into detail here. In all fairness, that article was written over three years ago, during which time Grammarly does seem to have improved on its shortcomings, but it still can’t fully compensate for the judgment of a human being. Grammarly is good for catching errors you missed yourself, but if you need to proofread a whole book, your best bet is to hire an editor.

Perhaps the biggest drawback I noticed while testing Grammarly is that it isn’t entirely relevant to my style of writing. This isn’t necessarily a con, per se; more of an observation of how the editor seems to be specifically geared toward strictly formal composition. Most of the documents I pasted into Grammarly were short stories, and while the proofreader was right to catch many of my supposed errors (even when set to “Creative – Short Story”), over 90% of them were left untouched due to being creative choices on my part as opposed to actual mistakes (e.g. character dialogue or first-person narrative intended to sound “real”). Perhaps this is more of a testament to the perfectionist editor in me than to Grammarly’s limited usefulness, but I still think it’s worth mentioning for the benefit of writers as meticulous about grammar as me. If you know exactly what mistakes you’re making, you don’t need to pay for an automatic proofreader to tell you the same thing.

I should also mention that I do much of my writing on an iPad, and though I was able to use Grammarly well on my laptop, I couldn’t access it at all through my mobile device due to incompatibility issues. I can’t say if the editor works on non-iOS devices because I don’t own one, so this is mostly a note of caution to Apple users, but it may apply to anyone who frequently writes on a smartphone or tablet. Until Grammarly comes out with a mobile app, you’ll have to make due with your device’s built-in spell checker.



  • Grammatical error corrections with explanations
  • More thorough than standard word processor spelling and grammar checkers
  • Built-in thesaurus for vocabulary enhancement
  • Plagiarism checker
  • Settings for different types of documents
  • Google Chrome plugin for universal use


  • More useful for formal writing than creative writing
  • Misses some grammatical errors
  • Incorrectly marks some alternative grammar choices as mistakes
  • Incompatible with mobile devices


Is Grammarly worth your money? I’d say that depends on three factors: what you write, how often you write, and how proficient you are at editing on your own. If you’re constantly typing up formal documents, articles and emails that require impeccable spelling and grammar, a premium subscription to Grammarly may be just what you need. If, however, most of your writing consists of poetry or stories that experiment heavily with form and style, then a standard free grammar checker may suffice. Use your discretion when deciding how much help you really need to edit your work.

Based on my brief experience with it, Grammarly certainly seems to warrant the respect it gets, and though I may not need it now while my writing is concentrated in the experimental short story format, I may consider attaining a full subscription for future proofreading of my novels and academic papers (both of which are included in the aforementioned preset list). In any case, Grammarly has certainly gained this writer’s attention, and I believe it deserves the attention of any writer looking for a better automated editor than what the standard word processor has to offer. To paraphrase the famous proverb, your grammar is only as strong as your weakest misplaced comma.

Bonus: I used Grammarly to proofread the first draft of this blog post. Before editing and after including vocabulary and plagiarism checking, it came out to 35 critical issues and a score of 91 out of 100. Thanks, Grammarly!

Today’s creative writing post is brought to you by Grammarly, the World’s Best Grammar Checker. I was not compensated for this review. All opinions expressed here are my own. For more information on Grammarly, visit Thanks for reading! Happy writing!

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