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Turn any PDF or set of notes into flashcards with AI

Upload a PDF, slide deck, set of notes or photos of a page. DeckOwl pulls out the key terms and definitions and builds flashcards you can review with spaced repetition.

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

How an AI flashcard maker fits into real studying

Most people who need an AI flashcard maker are sitting on a stack of lecture slides, a textbook chapter PDF, or photos of handwritten notes. DeckOwl reads those files, pulls out the key terms and definitions, and turns them into cards you can review on a schedule.

Flashcards generated from your own PDFs, slides, notes and images
Spaced repetition scheduling that adjusts to how you rate each card
Quizzes and mind maps from the same material when you want a different angle
Free to start with 3 generations a month and no credit card required

Example biology flashcards (general study topic)

What is the function of mitochondria?They produce most of the cell's ATP through cellular respiration.

What is osmosis?The movement of water across a semipermeable membrane from low solute concentration to high solute concentration.

What does one turn of the Krebs cycle produce?3 NADH, 1 FADH2, 1 ATP or GTP, and 2 CO2.

How do mitosis and meiosis differ?Mitosis produces two identical diploid cells; meiosis produces four genetically varied haploid cells.

What is a codon?A sequence of three mRNA nucleotides that specifies one amino acid.

Generate the full set

Works with your own material

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

Spaced repetition built in

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

Edit before you study

Adjust any card so the deck matches what your instructor actually covered.

How it works

Upload your material

Add a PDF, slides, notes or photos of a textbook page.

Generate your cards

The AI reads the text and drafts question and answer cards from the key content.

Study on a schedule

Review in the browser with spaced repetition and rate each card honestly.

Spaced repetition works because you see a card again just before you would forget it. Cards you miss come back sooner, and the easy ones wait. You can edit any card before you start, so the deck reflects what your course actually emphasized.

The free plan includes 3 generations a month and studying in the browser. Plus adds unlimited generations and exports to PDF, DOCX, Anki and CSV.

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Frequently asked questions

How many flashcards should I make for a biology unit?

Most chapters work well with 20 to 40 cards, with one term or fact per card. Remove any card that repeats another so your reviews stay focused.

Is spaced repetition better than rereading my notes?

For long-term recall, spaced review usually works better than rereading because it makes you pull the answer from memory. Rate each card honestly so the schedule matches what you actually know.

Can I export my flashcards to Anki?

Yes, but Anki export is a paid feature included in Plus, which costs $39 per year or $7.99 per month. The free plan lets you study in the browser without exports.

Is there a free plan?

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

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.