$riffle

flash cards · local first

no cards yet. import a CSV, TSV, Anki text export or JSON file, add cards one at a time, or to try a session.

domains · tap one to study only it

add card

domain topic front back

import

CSV or TSV with a header row (front, back, domain, topic, tags), an Anki "notes in plain text" export, a JSON array of cards, or a riffle backup. Anki deck paths like Spanish::Verbs become domain and topic. Re-importing updates matching cards and keeps their schedule.

file domain for rows without one topic for rows without one

sync & settings

cards live in this browser. sync keeps one compressed copy in a hidden app folder of your Google Drive and merges it with each device, newest edit winning per card.

google oauth client id

new cards per day target retention (0.70 to 0.99)