$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 notes source

import

CSV or TSV with a header row (front, back, domain, topic, tags, and optionally notes, source, key, delete), 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. A row with any value in its delete column deletes its card instead.

file domain for rows without one topic for rows without one

remove cards

deletes every card in a domain, or in one topic of it, on every synced device. the review log is kept. importing the cards again brings them back as new cards.

domain topic (blank for the whole domain)

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.

new cards per day target retention (0.70 to 0.99) google oauth client id override (blank uses the built-in one)