Kazu-SRS
Kazu-SRS is a free learning system built around active practice and review. Public study sets include JLPT N5+, N4+, and N3+ vocabulary, JLPT N2 grammar, and work-specific Japanese Classics review. Each set keeps the question format, review flow, and learning support suited to what you are studying.
About Kazu-SRS
Learn the basic ideas behind Kazu-SRS and how to use it.
Study
JLPT
N5+ · N4+ · N3+ · N2Study N5+, N4+, and N3+ vocabulary plus JLPT N2 grammar. The vocabulary sets include examples, English translations, furigana controls, detailed explanations, and browser-saved review progress.
Japanese Classics
Review vocabulary and expressions from Japanese classics with a Kazu-SRS set designed for each work. Buying Mittens is available now.
What does SRS mean?
SRS stands for spaced repetition system: it schedules items to revisit after a gap. In Kazu-SRS, missed answers become review items. You can also mark an uncertain correct answer as a miss. You can practise new material as well as review what is due.
The study apps are free and need no sign-up. Start your first session or learn how to back up your progress.
Vocabulary SRS: Design Philosophy and Guide
Explore the N5+, N4+, and N3+ modes, review intervals, and ways to study before and after an exam.