Smarter QuizzingKANJ.IO quizzes you intelligently - it knows what words you have yet to master, so you get the right amount of exposure to words that matches your unique learning curve.
Streamlined DrillingTest yourself across thousands of words in the shortest time possible. No page reloading, built-in hiragana input system, drop-down romaji mapping and hotkeys - built for efficiency.
Study AnywhereWhether you're at home, work or on-the-go, you just need an internet connection to access KANJ.IO, which means you can study almost anywhere.
Over 7,000 Words & SentencesKANJ.IO’s database holds over 7,000 words and sentences, and counting! It’s only going to grow as we continue to add more.
Free Kanji dictionnaryKANJ.IO offers free access to a dictionary of 2,500 kanjis: strokes number and writing order, various levels, meaning, ON and KUN readings, word examples, ...
Information at Your FingertipsEvery word and kanji are interconnected to bring you an immersive experience that allows you dive in as deep as you want, throughout KANJ.IO.
Progress OverviewYour overview collects all of your stats so you can easily visualize or share your progress across decks, words, and individual kanji.