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Turn any PDF or set of notes into AI flashcards

Upload a PDF, slides, notes or a photo of a page, and DeckOwl builds flashcards you review with spaced repetition.

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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

How AI flashcards from your own material work

Most people who study from slides end up rereading them, which feels productive but rarely sticks. Oreate AI flashcards give you a faster route: you start from the material you already have and get question-and-answer cards without writing each one by hand.

Start from your own PDFs, slides, notes or page photos instead of a generic deck.
Review cards in the browser on the free plan, with three generations per month.
Check generated cards against the source before you rely on them for an exam.
Use spaced repetition to decide what to review each day instead of going through the whole deck.

Example biology flashcards (general topic)

What is the function of the mitochondria?It produces most of the cell's ATP through cellular respiration, which is why cells with high energy needs contain many of them.

What does the term osmosis describe?The movement of water across a semipermeable membrane from lower solute concentration to higher, which evens out solute levels on both sides.

Which bases pair in DNA?Adenine pairs with thymine and guanine pairs with cytosine, because each pair fits the other's shape and forms the correct hydrogen bonds.

What is the difference between mitosis and meiosis?Mitosis produces two genetically identical diploid cells, while meiosis produces four haploid cells with varied genetics, which is how gametes are made.

What is the role of an enzyme in a reaction?It lowers the activation energy needed for the reaction to proceed, so the reaction runs faster and the enzyme is not used up.

Generate the full set

Works with your own files

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

Spaced repetition built in

Cards come back at the intervals where you are most likely to forget them, so review time goes to the cards you need.

Quizzes and mind maps too

The same material can also become practice quizzes with explanations or a mind map of how the ideas connect.

How it works

Upload your material

Add a PDF, slide deck, document, notes file or a photo of a textbook page.

Review the generated cards

DeckOwl drafts flashcards from the text. Read through them and keep the ones that matter for your course.

Study on a schedule

Work through the deck in the browser. Spaced repetition decides when each card returns.

The generator reads the text in your upload, picks out terms, definitions and relationships, and turns them into front-and-back cards. You can check each card against your source before studying, so anything the model got wrong is easy to fix or remove.

Spaced repetition then handles the timing. Cards you know well appear less often, and cards you miss come back sooner, which keeps the session short and focused on what you still need to learn.

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Frequently asked questions

How many flashcards should I make for a biology unit?

Aim for one card per distinct term, definition or process in the unit rather than a fixed number. Most students find that a card set of a few dozen to a couple hundred cards is manageable when reviewed daily.

How often should I review flashcards with spaced repetition?

Review a short session every day rather than one long session before a test. Spaced repetition schedules the gaps for you, so cards you find difficult return sooner.

Is there a free plan?

Yes. The free plan includes three generations per month and studying in the browser, with no credit card needed to start.

Can I export my flashcards to Anki or a spreadsheet?

Exports are paid features. Plus at $39 a year or $7.99 a month adds PDF, DOCX, Anki and CSV export, and students get 40% off with a school email.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.