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Upload your notes and get spaced repetition flashcards in minutes

Drop in a lecture PDF, slide deck, Word file or photo of a page. DeckOwl reads the material and writes flashcards you can review on a spaced repetition schedule.

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

Why upload notes instead of typing flashcards by hand

Most students already have their material in one place: a lecture PDF, a slide deck, or a photo of the whiteboard. Uploading notes to make flashcards turns that material into question-and-answer cards without retyping anything.

  • Start from PDFs, slides, DOCX files, text notes or photos of pages
  • Edit generated cards before you study so the set reflects your course
  • Review on a spaced repetition schedule instead of rereading everything
  • Export to Anki or CSV with a Plus plan if you want to study elsewhere
Example biology cell flashcards (general science topic)
What is the role of the mitochondria in a cell?They release energy from glucose through cellular respiration, producing ATP.
What is the difference between prokaryotic and eukaryotic cells?Eukaryotic cells have a membrane-bound nucleus and organelles, while prokaryotic cells lack both.
What does the cell membrane do?It controls what enters and leaves the cell, using a phospholipid bilayer with embedded proteins.
What is osmosis?The diffusion of water across a semipermeable membrane from low solute concentration to high solute concentration.
What is the function of ribosomes?They build proteins by translating messenger RNA into a chain of amino acids.
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.

Cards built from your own material

Every flashcard comes from the notes you uploaded, so you study what your instructor actually covered.

Spaced repetition built in

Cards return at the intervals that help you remember them, so you spend less time on what you already know.

How it works

Upload your material

Add a PDF, slides, a document, text notes or a photo of a page.

Review the generated cards

Edit, delete or add cards so the set matches what you need to learn.

Study on a spaced schedule

Work through the deck in the browser and let the schedule bring back the cards you are about to forget.

Hand-written cards take time to produce, and they often skip the details that show up on exams. Generating cards from the source text gives you a starting set quickly, which you can then trim and refine.

Once the cards exist, the study habit matters most. Answer from memory before you flip a card, and let spaced repetition decide when each one comes back.

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Frequently asked questions

How many flashcards should I make from one chapter?

Aim for one card per key term, definition, or cause-and-effect idea, which usually means 20 to 40 cards for a dense chapter. Remove cards you already know well and add more for concepts you keep missing.

Does spaced repetition work better than rereading notes?

Spaced repetition schedules reviews just before you would forget, which strengthens memory more efficiently than rereading. Pair it with self-testing by answering from memory before you check the back of the card.

Can I upload handwritten notes?

Yes, photos of pages are read with text recognition, and clear, well-lit photos work best. Check the generated cards against the original, since messy handwriting can be misread.

Do I need to pay to export my flashcards?

The free plan lets you study in the browser with 3 generations per month. Exports to PDF, DOCX, Anki and CSV are included in the Plus plan at $39/year or $7.99/month.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.