How does the spaced repetition schedule work?

Every card has an ease that starts at 2.5 and never drops below 1.3. After you flip a card, "Again" brings it back in 10 minutes and lowers the ease by 0.2. "Good" schedules it 1 day later the first time, 6 days the second time, then the last interval times the ease. "Hard" grows the gap by 1.2 times and lowers the ease by 0.15, and "Easy" goes 3 days, then 8 days, then the interval times the ease times 1.3, and raises the ease by 0.15. Each grade button shows the delay it will give.

Which keys can I use while studying?

Press Space or Enter to flip the card, then press 1 for "Again", 2 for "Hard", 3 for "Good" or 4 for "Easy". On a touch screen use the "Show answer" button and the four grade buttons. "Shuffle" mixes the order and "Reverse (show the back first)" asks you the back side instead of the front.

How do I import cards from a spreadsheet, Quizlet or Anki?

Open Import / export, paste one card per line with the front and the back separated by a Tab or a comma, or choose a .csv, .tsv, .txt or .json file. A first line such as "term,definition" is skipped, and quoted CSV fields with commas or line breaks work. Then press "Add to this deck" or "Import as a new deck". A deck holds up to 2,000 cards.

Where are my decks saved, and can I back them up?

Decks, images and your progress are saved in this browser's local storage on this device only, so they do not follow you to another browser or device, and clearing site data deletes them. Open Import / export and press "Export JSON" for a backup that keeps images and progress, or "Export CSV" for front and back text only. Import the JSON file again to restore it.

Can I put pictures on my cards?

Yes. On the Cards tab press "Add image" or paste an image with Ctrl+V while the card form is open. The picture is shrunk to at most 480 pixels on its longest side, saved as a JPEG inside the card, and shown with the front of the card while you study. "Export JSON" keeps the images, "Export CSV" leaves them out.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install.

🗂️

Free Flashcards

Make flashcard decks or import them from a spreadsheet, then study with flip cards and a spaced-repetition schedule saved in your browser.

Runs in your browserNo sign-up, no pop-upsNo login requiredFree foreverSpaced repetitionImport CSV or pasteSaved in your browser

How It Works

The page keeps your decks in this browser, works out which cards are due from each card's ease and interval, and shows them as flip cards you grade yourself.

1
Make or import a deck
Add cards one by one under Cards, or paste "front, back" lines or choose a CSV or TSV file under Import / export.
2
Start a session
Press "Start studying". Due cards come first, then up to the chosen number of new cards. Use "Shuffle" or "Reverse" if you like.
3
Flip and grade
Press Space to flip the card, then 1 for "Again", 2 for "Hard", 3 for "Good" or 4 for "Easy". Each button shows when the card will come back.
4
Come back later
Your progress is saved in this browser. Open the deck again when cards are due, and use "Export JSON" for a backup.

Your decks stay in this browser. Nothing is uploaded, and clearing your site data removes them.

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