No login, just a link
The whole deck is compressed into the share URL with lz-string. Send the link on KakaoTalk or anywhere — the other person studies instantly. Nothing is stored on a server.
CSV word list → shareable flashcards
Upload a CSV/Excel word list and get a login-free, shareable URL flashcard deck. Study with SM-2 spaced repetition; your progress stays only in this browser.
Drag a CSV / TSV file here
or
Uploaded files are never sent to a server. Everything runs inside your browser.
One "front, back" pair per line (comma or tab). A third column is an optional tag. You can also copy cells straight from a spreadsheet.
Cards detected: 0 cards
CSV format
Column 1 = front, column 2 = back, column 3 = tag (optional). Comma and tab are both supported; wrap a cell in double quotes if it contains commas, quotes, or line breaks.
SM-2 spaced repetition
Grade each card Again / Hard / Good / Easy. flashdrop schedules reviews with the SuperMemo-2 algorithm so easy cards stretch out and hard cards come back sooner.
Progress stays with you
Your study progress is saved only in this browser's localStorage. Reopen the same link on the same device and you pick up where you left off. Export weak cards as CSV anytime.