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Turn your class notes into AI-powered flashcards in minutes

Upload a PDF, slide deck, set of notes, or a photo of a page. DeckOwl pulls out the key terms and facts and turns them into flashcards you review with spaced repetition.

Create flashcards nowFree · No credit card required

Free · First set needs no signup · Creates flashcards in seconds

How AI-powered flashcards fit into studying

Most students already have the material they need, buried in lecture slides and textbook PDFs. AI-powered flashcards pull the key terms and facts out of that material so you can start reviewing the same day your notes are uploaded.

  • Turns PDFs, slides, DOCX files, and notes into flashcards
  • Reads photos of textbook pages using text recognition
  • Schedules reviews with spaced repetition
  • Lets you study in the browser on the free plan
Example intro biology flashcards (sample subject)
MitochondriaThe organelle that produces most of a cell's ATP through cellular respiration.
OsmosisThe movement of water across a semipermeable membrane from low solute concentration to high solute concentration.
Where do the light reactions of photosynthesis occur?In the thylakoid membranes, where they produce ATP, NADPH, and oxygen.
CodonA three-nucleotide sequence on mRNA that specifies one amino acid.
AlleleOne of two or more alternative forms of a gene that occupy the same locus on a chromosome.
Generate the full set

Works with the files you already have

Upload PDFs, DOCX and PPTX files, plain text notes, or images. Photos of pages are read with text recognition.

Spaced repetition built in

Cards come back at the moments you are about to forget them, so you spend less time rereading and more time remembering.

Cards made from your material

Every flashcard comes from your own course content, so you study what your instructor actually covered.

How it works

Upload your material

Add a PDF, slides, notes, or a photo of a page. No credit card is needed to start.

Review the generated cards

Check the flashcards DeckOwl creates and keep the ones that matter for your exam.

Study on a spaced schedule

Work through your deck in the browser and let spaced repetition decide when each card returns.

Good flashcards have one idea on the front and a short, specific answer on the back. Reviewing them on a spaced schedule, where cards you know appear less often and cards you miss appear more often, is one of the most reliable ways to move facts into long-term memory.

Because the cards are built from your own files, the deck reflects your course rather than a generic topic list. You can keep adding material as the term goes on.

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Frequently asked questions

How many flashcards should I make for an intro biology unit?

A typical unit can support somewhere between 20 and 60 cards, depending on how many terms and processes your instructor covered. Start with the vocabulary and concepts listed in your syllabus, then add cards for anything you keep missing.

What makes a good flashcard for memorizing terms?

A good card asks one question with one clear answer, such as a term on the front and its definition on the back. Avoid cards with long paragraphs, because they are hard to recall and hard to grade yourself on.

Is spaced repetition included for free?

Spaced repetition is part of the Plus plan, which costs $39/year or $7.99/month. The free plan includes 3 generations per month and studying in the browser.

Can I export my flashcards to Anki?

Yes, Anki export is available on Plus, along with PDF, DOCX, and CSV export. Exports are not included on the free plan.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.