Flashcard Maker
Create flashcard decks, paste a whole vocabulary list at once, and study with flip cards that use spaced repetition to show each card right before you would forget it. Everything is saved in your browser.
Spaced repetition shows each card again just before you are likely to forget it. Cram mode practises every card without changing its schedule.
Keyboard: Space to flip, 1–4 to rate.
Session complete
Bulk import into this deck
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Decks are saved automatically in this browser only. Export a JSON backup to move them to another device.
How to use the Flashcard Maker
- Create a deck with + New deck, or use the sample deck to try it out.
- Add cards one at a time in the Cards tab, or paste a list in Import / Export (one term - definition per line).
- Press Start studying, read the question and flip the card (click it or press Space).
- Rate yourself: Again, Hard, Good or Easy (or keys 1 to 4). The card is scheduled for its next review.
- Come back later: due cards are counted for you. Export a JSON backup to move decks to another device.
Review schedule example (Good every time)
With the default ease factor of 2.5, a card you rate Good each time is reviewed on this schedule. Each interval is the previous one multiplied by the ease factor and rounded to whole days.
| Review | Interval until next review | Total days since first study |
|---|---|---|
| 1st | 1 day | 1 |
| 2nd | 3 days | 4 |
| 3rd | 8 days (3 × 2.5 = 7.5) | 12 |
| 4th | 20 days (8 × 2.5) | 32 |
| 5th | 50 days (20 × 2.5) | 82 |
| 6th | 125 days (50 × 2.5) | 207 |
Rating Hard lowers the ease factor by 0.15 and multiplies the interval by 1.2 instead. Easy raises the ease by 0.15 and multiplies by an extra 1.3. Again lowers the ease by 0.2 and starts the card over. The ease factor never drops below 1.3, so even difficult cards keep moving forward.
Bulk import formats
| Format | Example line | Notes |
|---|---|---|
| Dash | gato - cat | Spaces around the dash; en and em dashes work too |
| Tab | gato⇥cat | What you get when copying two spreadsheet columns |
| CSV | "to be, or not",Hamlet | Quote a field that contains commas; use "" for a quote |
| Semicolon / colon | H2O; water | Choose the separator manually if auto-detect guesses wrong |
Tips for making good flashcards
- One fact per card. Short, specific questions are easier to rate honestly than long lists.
- Write questions, not just words. “What organelle makes ATP?” builds stronger recall than “mitochondria”.
- Study a little every day. Ten minutes of due cards daily beats a two-hour session once a week.
- Be honest with ratings. If you hesitated or got it partly wrong, choose Hard or Again.
- Make cards in both directions for vocabulary (word → meaning and meaning → word) by importing the list twice with the columns swapped.
Frequently asked questions
How does the spaced repetition work?
It uses a simplified SM-2 algorithm. A new card rated Good comes back in 1 day, then 3 days, then roughly 2.5 times longer each time. Easy stretches the gap further, Hard shortens it, and Again shows the card again in the same session and restarts its schedule.
What do Again, Hard, Good and Easy mean?
Again means you did not remember it. Hard means you remembered with real effort, Good means you remembered after a moment, and Easy means you knew it instantly. The small text under each button shows when you will see the card next.
How do I import a list of terms?
Open Import / Export and paste one card per line, for example mitochondria - the powerhouse of the cell. Tab-separated lines from a spreadsheet and CSV lines (term,definition) also work. A header line such as front,back is skipped.
Where are my flashcards saved?
In your browser's local storage on this device. Nothing is uploaded. Clearing your browser data removes them, so use Export all decks (JSON) to keep a backup or move decks to another browser.
What is cram mode?
Cram mode goes through every card in the deck, due or not, without changing the review schedule. It is useful the night before a test.
Can I use keyboard shortcuts?
Yes. While studying, press Space to flip the card and 1, 2, 3 or 4 to rate it Again, Hard, Good or Easy.
Why do flashcards work so well?
Flashcards make you recall the answer before seeing it, which strengthens memory more than rereading. Spacing reviews further apart as you learn uses the spacing effect, so you remember more with less study time.