The Best Free Online Grammar Resources

intro   The Best Free Online Grammar ResourcesEven the best of us have a grammatical issue from time to time. Where should we turn to to resolve those timeless questions about when to use “lay” and when to use “lie”? There are a ton of great free grammar resources on the web to answer these questions and just about any other grammatical question you have.

If you’re already improving your writing quality and expanding your vocabulary, why not also get your grammar down pat? Know where to go when you have a bothersome grammar issue and need to do a quick online grammar check.

College Guides

Some of the best free grammar resources come from colleges that make their grammar guides available to the public online. Purdue University, the University of Illinois, and the University of Ottawa all offer great free grammar guides that can help you brush up on your grammar rules. If you try your best to not be bothered by the page layouts straight from the ’90s, the grammar guides offered by the College of DuPage and Capital Community College can be really helpful.

Two of the best college grammar guides to use as regular references to perform a quick online grammar check are the Guide to Grammar and Style by Jack Lynch, a professor at Rutgers University, and Common Errors in English Usage by Paul Brians, a professor at Washington State University.

lynch   The Best Free Online Grammar Resources

Unlike the other college guides that only give a general overview of grammar rules, these are alphabetical guides that provide answers to specific grammar problems. You should have no problem finding out whether “lay” or “lie” is the way to go with these guides.

Full Books Available Online

You probably wouldn’t think to look for print resources online, but there are a couple good ones available. A major advantage to using these resources online””besides that you don’t have to pay for them””is that you can search through them with ease. Just type in the specific issue you’re looking for guidance on and it will pop right up. offers the classic grammar guide The Elements of Style in full. Keep in mind that it’s only able to be offered online because it’s an outdated edition, so you might find its rules particularly stingy and old-fashioned.

Google Books offers the complete Merriam-Webster’s Dictionary of English Usage. This is one of the best free grammar resources available online.

m w1   The Best Free Online Grammar Resources

It’s huge””it really is a whole dictionary dedicated just to grammar””so it’s nice to have it in an easily searchable online format. The only thing you might not like about it is that it’s possibly too comprehensive: it often goes into the history of the usage of words and phrases before concluding on the most correct usage. But it has answers to just about any grammar issue you can think of.

Grammar Girl

Grammar Girl is a podcast and website dedicated to grammar.

grammargirl   The Best Free Online Grammar Resources

Although less comprehensive than some of the other resources I’ve listed above, Grammar Girl gives clear explanations that will help you resolve common grammar problems. And if you’re a grammar nut like me, you might want to load up some of Grammar Girl’s podcasts onto your iPod so that you can listen to them on the go.


We all know that the internet cant ignore incorrect grammar, so be sure to keep grammar resources bookmarked and handy for those quick online grammar checks. Do you know of any other useful grammar resources?

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+1 for Grammar Girl.


Some bad grammar in this article …
-there are a ton of … -should be ..there is a ton of…
-cant … should be can’t

Joel Jordon

The spelling of “cant” was intentional (check out the link), but I apologize for the incorrect verb use for the singular “ton.” :P


Fair enough … I did not follow the link. And “ton” was a bit tricky and even in the correct form does not sound right!


Some bad grammar in this article …
-there are a ton of … -should be ..there is a ton of…
-cant … should be can’t


We can not loose sight of the importance of good grammer. I like the resources provided through this link. May sites like this be used for such a time as this to promote, evoke, and ignite the importance of good grammer!

Keyla Hendrik

Learning about grammar is important. Yet, I fully realize that learning grammar is not as easy as we guess, especially when we come from a country which doesn’t use English as its first language. I sometimes make errors in writing, even it could be at this post. Now, I also realize that grammar and vocabulary are not limited importance. For me, I can speak English as I always listen and read. I imitate the way native speakers said. We will have a better grammar with a running time. You may check out this link that found some native speakers do not understand grammar.


i think i need it


A great, free grammar checker is


A great, free grammar checker is