Click a card and its exact source lights up.
Rewrite, tag and reorder cards your way.
One idea per card, key concepts first, doubts flagged.
Only the pages you pick become cards.
Repeated stimulation of a synapse can strengthen signal transmission between neurons. This process is considered a cellular basis of learning.
NMDA receptors open only when glutamate binds and the membrane is already depolarized. This coincidence detection lets calcium enter the cell.
Because the change can last for hours or days, long-term potentiation is widely studied as a model of how memories are stored.
Turn any highlighted sentence into a card.
Free during launchAdd your email to download. We use it only to count your free exports (3 files a day).
3 cards, ready to import into Anki.
⇩ Download .apkgDownload one .apkg and import it into Anki.
Citecards reads your files and writes cloze cards from the key sentences.
10 cards, ready to import into Anki.
⇩ Download .apkgCreate another deckAdd your email to download. We use it only to count your free exports (3 files a day).
Cloze cards: one blank per card, 25 words at most. Other card types are coming soon.
Yes. Every card keeps a small grey note on the back with the file and page it came from, like "Biology.pdf · p. 12". The exact sentence from your source is saved in a hidden field you can open in Anki's Browse screen, so you can check a card against your notes while you study.
No. Upload your PDF, Word, PowerPoint or text file as it is. Citecards finds the key sentences and writes the cards for you. No front and back pages, no templates.
Text in PDF, Word and PowerPoint files, plain text files and pasted text. Text inside images or diagrams can't be read.
Works best with text-based notes. Complex math formulas may not come through perfectly, so check those cards.
Up to 80,000 characters per document on Free, 100,000 on Weekly and Monthly, and 150,000 on 6 months. You can also pick only the pages you need.
3 files and up to 50 cards a day. No account needed to generate and review your cards. You'll add your email when you export.
To create your account, sign you in and keep your plan. We also use it to count your daily usage. We never sell it.
Your file is only used to write your cards. The text is sent to our AI provider (OpenAI) for that, and we don't keep your documents. By default, data sent through OpenAI's API isn't used to train its models. Please don't upload passwords, ID numbers or private health records. More details are in our Privacy Policy, linked at the bottom of this page.
It marks a card worth double-checking against your source, with the reason, so you know which ones to look at first. It's about accuracy, not privacy: it flags facts that are easy to get subtly wrong, like numbers, dosages or the direction of a relationship.
Yes. Rewrite, tag, reorder or delete any card before you export. Nothing leaves until you do.