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Turn any PDF into AI flashcards you can study today

Upload a PDF, slides, notes or a photo of a page. DeckOwl reads the text and writes flashcards you 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

Why convert a PDF to flashcards with AI

Turning a dense lecture PDF into flashcards by hand can take longer than the reading itself. PDF to flashcards AI tools read the text, pick out terms and definitions, and write question-and-answer cards you can review right away.

Works with text-based PDFs, scanned pages and slide decks
Each card has a clear question on the front and answer on the back
Spaced repetition schedules reviews based on how well you recall
Plus adds unlimited generations and export to PDF, DOCX, Anki and CSV

Example flashcards from a biology PDF

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

What does osmosis describe?The movement of water across a semipermeable membrane toward the side with higher solute concentration.

What is the difference between mitosis and meiosis?Mitosis produces two identical diploid cells; meiosis produces four genetically varied haploid cells.

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

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

Generate the full set

Any PDF or slide deck

Upload PDFs, DOCX, PPTX, plain text notes or photos of pages. Text recognition reads images too.

Spaced repetition built in

Cards resurface at the intervals your memory needs, so you review less and keep more.

Study in the browser

The free plan includes 3 generations a month and browser study. Export to Anki, CSV or PDF on Plus.

How it works

Upload your PDF

Drop in a lecture handout, textbook chapter or scanned pages.

Review the cards

Check the AI-written questions and answers, and edit any that miss the point.

Study on schedule

Spaced repetition brings each card back right before you would forget it.

The quality of the cards depends on the source. Clean, text-based PDFs give the most accurate results, while scanned pages are read with text recognition, so check them before studying. Keep the cards that test what your course emphasizes and delete the rest.

Once the cards exist, spaced repetition schedules reviews so you spend time on material you are close to forgetting. The free plan covers three generations a month for trying it out.

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Frequently asked questions

How many flashcards should I make from one PDF chapter?

Most chapters work well with 20 to 40 cards, focusing on key terms, definitions and cause-and-effect relationships. Fewer, sharper cards are easier to keep up with than a long deck you skip.

How do I study flashcards from a PDF effectively?

Review a small batch daily instead of cramming, and say the answer aloud before flipping the card. Mark cards you miss so they come back sooner, which spaced repetition handles for you.

Can DeckOwl read scanned PDFs or photos of pages?

Yes. Images, including photos of pages, are read with text recognition, so accuracy depends on how clear the scan is. Check the generated cards before you start studying.

Do I need to pay to export my flashcards?

Exporting is a paid feature. Plus ($39/year or $7.99/month) includes PDF, DOCX, Anki and CSV export, while the free plan lets you study in the browser.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.