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Replace empty flash cards with cards made from your own notes

Upload a PDF, slide deck, set of notes, or a photo of a page, and DeckOwl writes the flashcards with spaced repetition built in.

Create flashcards nowFree · No credit card required

Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free · First set needs no signup · Creates flashcards in seconds

Why a blank set rarely gets studied

Blank index cards are fine for jotting a term, but the slow part is deciding what belongs on each one. Empty flash cards only save time when something fills them with accurate material from your course.

Generate flashcards from PDFs, DOCX, PPTX, notes, or page photos
Review with spaced repetition so weak cards come back more often
Study in the browser on the free plan with 3 generations per month
Export to PDF, DOCX, Anki, or CSV on Plus at $39/year or $7.99/month

Example cell biology flashcards (general study topic)

Which organelle makes most of a cell's ATP?The mitochondrion, through cellular respiration.

What is the main function of the Golgi apparatus?It modifies, sorts, and packages proteins and lipids for transport.

How do prokaryotic and eukaryotic cells differ?Eukaryotic cells have a membrane-bound nucleus and organelles, while prokaryotic cells lack both.

What does the phospholipid bilayer of the cell membrane do?It forms a selectively permeable barrier that controls what enters and leaves the cell.

What is osmosis?The diffusion of water across a selectively permeable membrane toward the side with higher solute concentration.

Generate the full set

Starts from your material

Flashcards are built from the PDFs, slides, notes, or page photos you already have, so you are not writing every card from scratch.

Spaced repetition

Cards you miss come back sooner, and cards you know come back less often, so review time goes to what you actually need.

Study anywhere

Study in the browser on the free plan. Plus adds PDF, DOCX, Anki, and CSV export for printing or moving cards to other apps.

How it works

Upload your material

Add a PDF, DOCX, PPTX, plain text notes, or images of pages. Photos are read with text recognition.

Generate the cards

DeckOwl turns the content into flashcards. Review them and remove or edit any that need work.

Study on schedule

Work through the deck. Spaced repetition decides which cards show up next based on how you answered.

The most useful cards usually come from your own readings and lecture slides, not from a generic list. DeckOwl reads your files and drafts a card for each key idea, so you can spend your time checking and studying instead of copying.

Keep one idea per card, put the question on the front, and keep the answer short enough to recall in a few seconds. Edit the generated set so it matches what your instructor actually covers.

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Frequently asked questions

How many flashcards should I make for a cell biology unit?

There is no fixed number. Make one card per key term or idea, then add extra cards for concepts you keep missing. Spaced repetition will show the hard ones more often.

What makes a good flashcard for studying?

Keep one idea per card, write the question on the front, and keep the answer short. Cards with long answers are hard to recall and hard to review.

Can I export my flashcards?

Yes, on the Plus plan, which includes PDF, DOCX, Anki, and CSV export. The free plan lets you study in the browser but does not include exports.

Is there a free plan, and do students get a discount?

Yes, the free plan includes 3 generations per month and no credit card is needed to start. Students get 40% off with a school email.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.