FSRS Spaced Repetition Japanese Flashcards with Anki Import/Export & Analytics

Retain Japanese kanji, vocabulary, grammar, and sentences using the modern FSRS (Free Spaced Repetition Scheduler) algorithm. Works 100% offline in your browser with optional cloud sync and Anki compatibility.

• Powered by the FSRS spaced-repetition algorithm for optimal memory retention
• Create cards from any quiz, book chapter, reading passage, AI lesson, or the Chrome Web Extension
• Includes Anki import/export, custom categories, Pomodoro study timer, and retention heatmaps