Spaced Repetition Tool

What is Spaced Repetition Tool?

Spaced Repetition Tool implements the SM-2 algorithm to help you memorize anything efficiently. Create flashcards, review them on an optimized schedule, and track your progress. Cards you find difficult appear more often; cards you know well appear less — maximizing retention with minimal study time.

How to use

1. Create a deck and add flashcards with a front (question/term) and back (answer/definition).
2. Start a review session — cards due for review appear based on the SM-2 spaced repetition algorithm. Rate each card from 'Again' to 'Easy'.
3. Track your progress with statistics: cards learned, review accuracy, upcoming schedule. Export your decks as JSON for backup.

Result

You're studying Spanish vocabulary. Create a deck, add 20 cards (e.g., front: 'house', back: 'la casa'). After the first review, easy cards won't appear for 4 days, while difficult ones return tomorrow.

Related Tools