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Turn any PDF into Anki-ready flashcards with AI

Printed decks and downloaded files rarely match your course. Upload your own PDF, slides, notes or photos and get flashcards built from your material.

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Why a custom deck beats a downloaded one

A Anki deck PDF download gives you someone else's cards, built for their syllabus and their wording. Your exam follows your lecture notes, so a generic set often covers the wrong terms and skips the ones your professor emphasized.

  • Cards match your course readings and slides, not a generic topic list.
  • Images of textbook pages are read with text recognition, so photos work too.
  • Spaced repetition schedules reviews around what you keep missing.
  • Export to Anki, PDF, DOCX or CSV is available on the Plus plan.
Example probability basics flashcards
What is the probability of an event?The number of favorable outcomes divided by the total number of equally likely outcomes.
What is the complement rule?P(not A) = 1 − P(A), because either event A happens or it does not.
What is P(A or B) for mutually exclusive events?P(A) + P(B), because the two events cannot both happen in the same trial.
When are events A and B independent?When P(A and B) = P(A) × P(B), meaning knowing A happened does not change the probability of B.
What does a probability of 0 mean?The event is impossible. A probability of 1 means the event is certain.
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Built from your own PDF

Upload a PDF, DOCX, PPTX, text file or photo of a page. Cards come from the material your class actually uses.

Spaced repetition built in

Cards you miss come back sooner and cards you know come back later, so review time goes to what you are still forgetting.

Export to Anki on Plus

Plus exports your deck to Anki, along with PDF, DOCX and CSV, so you can study in the app you already use.

How it works

Upload your material

Add a PDF, slides, notes or a photo of a textbook page. Text recognition reads images too.

Review and edit the cards

Check the generated flashcards against your source and fix any term or answer that needs changing.

Study or export

Study in the browser on the free plan, or export the deck to Anki or PDF on Plus.

Making cards from your own material takes the guesswork out. Upload the PDF you already study from and you get questions and answers tied to the exact pages, which makes review faster and gaps easier to spot.

Once the deck exists, spaced repetition handles the scheduling. You spend less time deciding what to review and more time actually recalling the answers.

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Frequently asked questions

How should I study probability basics with flashcards?

Make one card per definition, formula or problem type, and answer from memory before you check. Spaced repetition brings the hard ones back more often, which helps you recall how to set up a problem.

How many flashcards should I make for probability basics?

Start with the core definitions, the addition and complement rules, and independence, then add one card per worked problem type. Keep each card to a single idea so your answers are easy to grade honestly.

Can I export my cards to Anki or PDF?

Yes, but exports are a Plus feature. The free plan lets you study in the browser with three generations per month, and Plus adds unlimited generations plus PDF, DOCX, Anki and CSV export.

Do I need a credit card to try DeckOwl?

No, you can start on the free plan without a credit card. Students get 40% off Plus with a school email.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.