Turn your notes into standard size flash cards with AI
Upload a PDF, slides, notes or a photo of a page. Get flashcards to study in the browser, or export a PDF to print on index cards.
Choosing the right size for your flash cards
If you need standard-size flash cards for a class, exam or study group, the most common choice in the US is the 3 x 5 inch index card. Many people also use 4 x 6 inch cards when they want more room for diagrams or longer answers. Either size works well if each card holds one question on the front and one answer on the back.
- Use one fact or term per card so the answer is easy to check.
- Start with 3 x 5 inch cards if you want the most common US size, or 4 x 6 inch cards for longer content.
- Print a test page on plain paper before using card stock.
- Review your cards with spaced repetition instead of re-reading them in order.
Built from your material
Upload PDFs, DOCX or PPTX files, plain notes, or photos of pages. The cards cover what your own course material says.
Spaced repetition
Cards come back at the intervals you need, so you review the hard ones more often and spend less time on what you already know.
Export when you need paper
Plus includes PDF export for printing, plus DOCX, Anki and CSV files. Check your print settings so the cards match the size you chose.
How it works
Upload your material
Add a PDF, slides, notes or a photo of a page. Text in images is read with text recognition.
Generate and review cards
DeckOwl writes flashcards from the content. Edit any card that is too long or unclear before you study.
Study or print
Study in the browser on the free plan. On Plus, export a PDF and print it on card stock cut to your standard size.
Digital cards do not have a physical size limit, so it helps to keep each one short enough to read at a glance. Before you print a full set, print a single test page on plain paper and hold it against a real card. Confirm that the text fits and the margins look right, then adjust your settings and print the rest.
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Frequently asked questions
What size are standard flash cards?
In the US, the standard flash card or index card is 3 x 5 inches (about 7.6 x 12.7 cm). Many people also use 4 x 6 inch cards for more space.
How do I print flash cards at standard size?
Export your set as a PDF, print a test page on plain paper, and check the text against a real card. Then print on card stock and set your printer to the size you need.
Can I export my flashcards to PDF for printing?
Yes. PDF export is a Plus feature at $99.90/year or $9.99/month. The free plan lets you study in the browser, but it does not include exports.
How many cards should I make for one topic?
Start with one card for each key term or fact in the topic. A set of a few dozen cards is a manageable first round, and you can add more as you go.
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