
Kotojutsu: Learn Japanese
JLPT, Kanji, Hiragana & Words
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Free
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About
Learn Japanese the way you travel the Tokyo metro. Every line is a topic, every station a lesson, and Densha, your little train, rides with you from your first hiragana all the way to JLPT N1.
A REAL PATH, FROM N5 TO N1
• More than 1,300 short lessons, organized as metro lines, from complete beginner to advanced.
• Varied exercises: multiple choice, tiles to put in order, listening, typing in kana or rōmaji.
• A yōkai to defeat at the end of each line to prove what you've learned.
REVIEWS THAT COME AT THE RIGHT TIME
• Spaced-repetition flashcards: each card comes back just before you'd forget it.
• Kanji and vocabulary decks for every JLPT level, plus decks shared by the community.
EVERYTHING TO READ AND WRITE
• Kana to trace with your finger, stroke by stroke.
• A Kanjidex, a dictionary and texts to read with audio, furigana and translation.
• Grammar explained simply, point by point.
MOTIVATION THAT LASTS
• A daily streak, a goal that adapts to your pace, and your flame on the Lock Screen.
• A station stamp book to fill, plus frames and app icons to unlock.
• Widgets for your streak and a word to review every day, a weekly leaderboard and Siri shortcuts.
100% FREE
All core content is freely available to practice every day: the full path from N5 to N1, mock exams, the Kanjidex, flashcards, kana tracing, and dictionary.
The same account and progress as on kotojutsu.com.
Terms: https://kotojutsu.com/conditions
Privacy: https://kotojutsu.com/confidentialite
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What's New in Kotojutsu
1.1
November 6, 2026
• Animated profile frames: the Yamanote train loops its line, the ensō is drawn with a brush, sakura petals fall… and six new frames are earned in other ways than XP. • Sturdier sign-in: a network drop no longer logs you out, and the last answers of a lesson or exam are no longer lost. • Streak freeze: Densha's thaw now gets its own celebration. • Grammar: sentence-building exercises accept natural Japanese, without a leading わたしは or これは. • Small display and translation fixes.
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