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Spaced repetition
Follow-typing
See the character and its pinyin, type along, and wrong letters turn red instantly.
Dictation
Characters and pinyin are hidden — listen and type to test what you really know.
Spaced repetition
Built-in FSRS: your mistakes set the grade, and due reviews are scheduled for you.
Type v for ü
Answer keys normalize ü to v, matching how real input methods work.
Community
Free and open source — come say hi, or tell us what to fix.