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See how Anki flashcards work and build your own from class notes

Anki flashcards rely on spaced repetition. DeckOwl turns your own notes into cards that follow the same review schedule.

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How Anki flashcards work

Most people first hear about Anki flashcards when a classmate mentions reviewing a deck every morning. The core idea is simple: you see a question, try to recall the answer before flipping the card, then rate how easily you remembered it. Cards you know well are shown again after longer gaps, while shaky ones come back sooner. That scheduling, called spaced repetition, is what makes the method work better than rereading notes.

  • Each card should test one fact, so you can grade your recall honestly.
  • Write the question in your own words instead of copying a highlighted sentence.
  • Review a little every day, since short sessions beat one long cram night.
  • Export finished decks to Anki on a Plus plan if you want to keep studying there.
Example biology flashcards on cell structure and transport
MitochondriaOrganelle that produces most of the cell's ATP through cellular respiration.
OsmosisMovement of water across a semipermeable membrane toward the side with higher solute concentration.
RibosomeStructure where mRNA is translated into a polypeptide chain.
Passive transportMovement of molecules down their concentration gradient without energy input, such as diffusion through channels.
Golgi apparatusOrganelle that modifies, sorts and packages proteins for transport within or out of the cell.
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Spaced repetition

Cards come back at intervals that match how well you remembered them.

Your own material

Upload PDFs, slides, notes or photos of pages and get cards drawn from them.

Study where you are

Review in the browser on the free plan, with exports on paid plans.

How it works

Upload your material

Add a PDF, DOCX, PPTX, text file or photo of a page.

Review the draft cards

Keep the ones that test a single fact and edit or delete the rest.

Study on schedule

Recall each answer, rate it, and let spacing decide when it comes back.

Writing a deck by hand takes time, especially when your material is a 60-slide lecture or a scanned textbook chapter. DeckOwl reads PDFs, DOCX, PPTX, plain text and photos of pages, then drafts flashcards with spaced repetition from your own material. Review the cards, delete any that are vague, and study in the browser.

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Frequently asked questions

How many flashcards should I make from one lecture?

Start with the key terms and definitions from the lecture, then add cards only for facts you tend to forget. A card that covers several ideas at once is harder to grade honestly, so split it.

What is the best way to answer a flashcard?

Try to recall the full answer before you flip the card, then grade yourself honestly. Flipping immediately or guessing gives the spacing schedule inaccurate information about what you know.

Does DeckOwl export to Anki?

Yes, the Plus plan includes export to Anki, along with PDF, DOCX and CSV. The free plan lets you study in the browser with 3 generations per month, but it does not include exports.

Can I try it before paying?

Yes, the free plan includes 3 generations per month and browser study, and you do not need a credit card to start. Students with a school email get 40% off paid plans.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.