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Your Japanese at a glance — pick a path and keep going.

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The full grammar graph, from N5 to N1

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Grammar

文法

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The core skill tree — every grammar point from N5 to N1

Study Review Grammar Explorer

Conjugation

活用

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Verb and adjective forms, rules, and sound changes

Reference Graph

Particles

助詞

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Usage and nuance of は, が, を, に, で and friends

Reference Drill Graph

Kanji Heatmap

漢字

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2,419 kanji colored by real-world usage frequency

Kanji Heatmap

Onomatopoeia

擬音語

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Giongo and gitaigo — the sounds of Japanese

Reference

Keigo

敬語Reference

4 registers · 13 verb ladders · 3 real-world contexts

The politeness ladder, from plain speech to 敬語

Reference

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A tour of study, review, graphs, drills, progress tracking, and sync.

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Your skill trees

Grammar

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Onomatopoeia

Keigo

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