The classroom corner

Revise flashcards with spaced repetition

Your revision schedule lives in YOUR file, not in our database: you drop it in, you revise, you export it again. No account, no subscription, and nothing to rescue if the service shuts down, because there is no service.

.csv · .json · .txt5 MB of deck

Drop your deck of cards hereA CSV, a JSON or a text file. Two columns are enough: question, answer.Choose a file

This file is beyond what this tool does

This tool needs JavaScript to work, and that is precisely because it works ON YOUR DEVICE: without JavaScript, your file would have to be sent to a server. The instructions and the limits of the tool, however, can be read without JavaScript, just below.

How this is built

Your file never leaves your device

This tool works entirely inside your browser. Not one byte of your file is sent anywhere, and nothing is kept once the tab is closed.

Checkable in ten seconds, without taking our word for it:

Open your browser's inspector: the F12 key (or Ctrl+Shift+I, or Cmd+Option+I on a Mac).
Go to the “Network” tab, then clear the list.
Process a file on this page. The list stays empty: no request goes out.
To go further: cut your connection and do it again. The tool still works.

This absence of requests is also checked BY MACHINE before every release: a lock drives a real browser, processes a real file, and refuses to publish if a single byte goes out.

The proof page, step by step and in pictures

Going further

InstructionsHow it works

Two columns are enough: the question, then the answer. If the file also carries a “boite” column and a “revoir” column, they are read back: that is how an already revised deck picks up where it left off. The CSV separator is MEASURED, not assumed.

VerifyThe proof, step by step

The network inspector check, explained one gesture at a time, with screenshots.

The cornerThe classroom corner

The other tools in this corner of the workshop.

UnderstandHow this is built

The formats actually handled, browser by browser, and what we ruled out.