“Tae Kim’s Guide To Japanese” is one of the greatest Japanese grammar resources on the web. It’s 100% free, translated into a bunch of languages, and full of information on Japanese grammar. While I (believe) it’s meant to be a sort of textbook, I think it shines to most as a resources. As in, if I’ve learned a grammar point somewhere else, but need a refresher (or a better explanation of the grammar point), Tae Kim’s Guide is a great place to do it. There are comments on the lesson pages with a lot of questions answered, a good amount of examples, and forums (where you can get your Japanese language questions answered).

Visit Tae Kim’s Guide to Learning Japanese →

Pros

• Forums and community to help you with any Japanese question you might have.
• Translations of the text in a bunch of different languages.
• Great resource for learning or re-learning Japanese grammar points.
• Free, all available on the web.
• iPhone app and PDF versions available as well.
• Puts similar grammar points together (makes it nice because you can learn all of them at once, but also makes it harder to find specific grammar points on their own).

Cons

• Can be difficult to find the grammar points you’re looking for
• Have found errors in some of the examples in the past

Final Word?

A lot of people love Tae Kim’s Guide to Japanese, including myself. It was built up by one person, and contains an insane amount of information. Chances are, if you’re searching for a Japanese grammar lesson on Google, you’ll run into Tae Kim’s Guide To Japanese somewhere on the first page. For some people, Tae Kim’s Guide might be good for complete beginners, though I’ve always thought of it as a better “second textbook” or something along those lines. Just because it’s a “second textbook” in my mind doesn’t mean you shouldn’t use it, though, it’s a fantastic resource.