The Best Grammar Checker for Blogs, Emails, Mobile and Social Media

cms grammar check

If you’ve been a reader of Martech for a while, you know I could use quite a bit of help in the editorial department. It’s not that I don’t care about spelling and grammar, I do. The problem is more of a habitual one. For years, I’ve been writing and publishing our articles on the fly. They don’t go through multiple steps of approval – they’re researched, written and published.

Unfortunately, that’s caused me some embarrassment as I’ve published some ridiculous grammatical errors over the years. I’ve even spoken to some of our copywriters about having them on retainer to review my posts every day. However, I don’t want to wait to publish so I’ve been putting it off. Not to mention the fact that I may not like how their recommendations change the tone of my work. I’ve honestly avoided going the editing route. As well, I write so many articles that I need to improve my command of the English language.

I’m not the only one! Grammarly analyzed over one billion words proofread by their popular writing app over the course of one month.  Here’s what they found:

Mistakes per 100 Words

  • People made an average 39 mistakes per 100 words in social media posts. Emails follow with 13 mistakes per 100 words and blog posts are the lowest with 6.5 mistakes per 100 words.
  • People are three times as likely to make mistakes in social media posts than we are in any other type of online writing. I’m guessing some of this has to do with the limitations of Twitter (no edits) and conversational nature of social media.
  • Early birds writing between 4:00 am and 8:00 am made 18.2% fewer mistakes than night owls writing between 10:00 pm and 2:00 am. (Uh-oh)

The Top 5 Confused Words that Cause Grammatical Errors

  1. Apostrophe Mistakes (e.g., let’s vs. lets)
  2. Too vs. To
  3. Everyday vs. Every Day
  4. There vs. Their
  5. Than vs. Then

You might be seeing some improvement in this area, as I’ve invested in an annual license for Grammarly, a service that’s been often named the world’s best grammar checker. Complete with a Google Chrome extension, I can quickly write and correct errors without ever leaving the WordPress editor.

Aside from the extension, Grammarly’s website and Chrome extension can be used to write a document, upload existing documents, instantly check for grammar, punctuation, contextual spelling mistakes, and even provide vocabulary improvements.

Best of all, Grammarly is a service I can utilize with any platform or software. The Chrome extension covers me regardless of whether I’m writing in WordPress, Tumblr, Medium, Facebook or even just writing a Tweet. If I’m using Word, I can use a Microsoft Office Add-in or just upload it to their site instead.

Here’s a walk-through with this post. With the Google Chrome extension, you can see an icon on the bottom right of the post:


Hover over the icon, and you’re provided some additional details about the content you’ve written.


Click-through on that message and up pops a beautiful interface from Grammarly to review the issues, recommendations, and edit your content inline.


Grammarly has also developed a fantastic mobile keyboard that brings all the features of their platform to your smartphone.

Grammarly Mobile Keyboard

If that’s not enough features for you, how about a weekly email to let you know how well you’re performing versus other Grammarly users? (Hopefully, I’m able to get insight into my improvements over time, too!)

grammarly email report

About Grammarly

Grammarly is a simple and powerful writing app that corrects more types of spelling and grammatical mistakes than any other software on the market. The product suite comprises the Grammarly Editor online editing tool; browser extensions for Chrome, Firefox, and Safari; Grammarly for Microsoft Office; and Grammarly for your desktop, a convenient desktop editor for Mac and PC.

Note: We’re using affiliate links throughout this post.


  1. 1

    I’m testing it out right now. Is there a feature that tells it to ignore html characters on a doc? Presently, when writing for web, I just format as I go and right grammarly is having fits, especially when It gets to lists.

    And, grr, when is it going to support Google Drive?

    Otherwise, it’s awesome.

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