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Free Online Grammar Checkers

Updated on September 29, 2014

As a student, online writer or blogger, you have to regularly keep your grammar in check.

And while I already trust you just as much as you do yourself, it never hurts to double-check your work for common errors you might have missed in a hurry.

After all, you wouldn't want your readers to laugh at the simple mistakes that you made in your writing!

This page lists some of the the most helpful grammar checking utilities available online for free. Some of them are subscription based and offer a non-paid version with limited functionality, while others deliver their entire set of grammar checking features free of charge.


  • Spelling Check
  • Grammar Check
  • Plagiarism Detection
  • Writing Suggestions

If you've been looking into different grammar checkers for sometime, it's likely that you've seen this option mentioned several times. Grammarly is one of the most popular grammar checking websites out there, and it lives up to the ad-generated hype, at least for the most part.

All users, both free and paid, can paste their text into the online proofreader and get an instant grammar check performed before their eyes. It offers a choice of a writing category before you proceed, mostly to enhance the accuracy of corrections. After you've entered the required information, it checks the text for grammar, punctuation and writing style errors.

Grammarly is one of the most efficient grammar checkers out there. It delivers everything most people would want to see in a grammar checking software. However, a lot of its additional features require a paid subscription from users, which is a good reason why you might want to read about some of the free Grammarly alternatives listed below.


  • Spelling Check
  • Grammar Check
  • Punctuation
  • Writing Suggestions
  • Translation

WhiteSmoke is a professional proofreading and grammar checking software suitable for checking a wide range of text types, including academic, creative and business writing. Numerous teachers, students, writers and people of many other professions stand by its large selection features and reliable grammar checking algorithm. Casual users will also find this application useful in their day to day writing tasks.

While it's definitely one of the most versatile grammar tools out there, the only way to use WhiteSmoke without being charged is to take advantage of its limited free trial offer. You can go ahead and sign up to see if it's a good match for your needs, or browse this page for other grammar checking websites available online, some of which are completely free.


  • Spelling Check
  • Grammar Check
  • Writing Suggestions
  • Plagiarism Detection

This website lists several additional features on its website, such as auto grader, style suggestions, word choice analysis, readability statistics, title validation and a vocabulary builder tool. PaperRater is definitely a solid grammar checking tool, as well as a great alternative to Grammarly and WhiteSmoke. One of its most obvious advantages compared to other options available online is that it's absolutely free to use.

On the other hand, it doesn't have many other exceptional features other than that. Internet users can be underwhelmed by the limited capabilities of PaperRater after they've used WhiteSmoke or Grammarly. It doesn't always catch some of the more advanced writing mistakes, so it might not end up being your top choice once you've tried other options.


  • Spelling Check
  • Grammar Check

This website has gone though a lot of improvements since first being launched. A nice user interface and basic features were once the only advantages grammar checker, but you can now take advantage of a wide range of advanced grammar tools as well. Due to its ease of use, you might prefer to run some of your shorter texts and posts through WebSpellChecker, making it an ideal choice for bloggers and lensmasters.

If you want to be able to double-check your writing for errors on the fly using an intuitive interface, you should definitely give WebSpellChecker a try. It has a free web-based checker, as well as a paid version with a 30-day trial. However, it's still not too far beyond a regular Microsoft Office spell check function and does not stand up to competition from far superior grammar checking tools, such as Grammarly or WhiteSmoke.


  • Spelling Check
  • Grammar Check

GrammarCheck is a tool that will cover most of your proofreading needs and is free to use. There's also a collection of links to helpful articles on many different English grammar issues, which ensures that you will not only get some quick assistance on your English papers and articles, but have a chance to improve your own skills as well.

Certainly not the best grammar checker around, but it's free and it works.


  • Spelling Check
  • Grammar Check
  • Writing Suggestions
  • Text-to-Speech Reader

Want to go out and grab a bear? Well, neither do I, so let's find ourselves a free software that will save us from misspelling simple words! Marketed as a tool to improve your English communication and avoid embarrassing mistakes, Ginger fills a niche in which it might just be leading the race. It's certainly no Grammarly when it comes to proofreading large texts, but its ability to catch spelling mistakes in different contexts makes it a nifty tool you wouldn't miss for the awesome price of $0.00!

Unlike most tools on the list, Ginger is a downloadable application that you can automatically use for any type of writing on your computer. It was developed and released by a leading company in the field of natural language understanding, and the team behind this software is still working every day to improve the algorithms behind Ginger.


  • Spelling Check
  • Grammar Check

SpellCheckPlus catches basic spelling errors in your English articles and papers, not unlike Microsoft Word, for that matter. It's free and it works, but if you're going for high quality proofreading, you should probably look into some of the websites listed above or choose an entirely different grammar checking option, such as downloadable software.

Which is your favorite grammar checking website or software?

See results

A wide range of developers offer great applications that you can download and use on your computer whenever you want. There's also plenty of high quality apps available for Android and Apple's iOS, for when you need to double-check your writing on the fly. While most of them are paid, it allows the developers to offer a numerous features, quality service and frequent updates to all users. There's a huge number of options out there, so if none of these options apply for you, don't let it stop you and just keep looking!

Is there a free grammar checker that you're using, but can't find on this page? Feel free to mention it in the comments!


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    • FlourishAnyway profile image

      FlourishAnyway 3 years ago from USA

      This is helpful information. I was looking for this information the other day.

    • breakfastpop profile image

      breakfastpop 3 years ago

      Thanks for this incredibly helpful hub! Voted up and useful!

    • Jodah profile image

      John Hansen 3 years ago from Queensland Australia

      Very helpful hub. I had heard of Grammarly but none of the others and haven't used any grammar checker before. However I will definitely be checking out some of these, especially the free ones. Voted up.

    • DDE profile image

      Devika Primić 3 years ago from Dubrovnik, Croatia

      You shared valuable information and always an informative hub from you. It is so important to check for such mistakes.

    • CatherineGiordano profile image

      Catherine Giordano 3 years ago from Orlando Florida

      My grammar checker is old fashioned--my brain, a few research books, or a web search. If I was a professional writer, paid to write, I think a service like the one you mentioned would be a useful business expense. It would depend on much better the service was compared to WORD. You did a good job of reviewing the options available for anyone who needs them. I've done a few essays on grammar--see The Naughty Grammarian.

    • JamesPoppell profile image

      JamesPoppell 3 years ago

      Thank you for posting this hub. I found it both useful and interesting. While I am familiar with the first two options listed, Grammarly and WhiteSmoke, I am not familiar with the other sites you mentioned. Having said that, I am looking forward to reviewing those sites. Thanks again and have a fantastic day!