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Turn any PDF or set of notes into unlimited flashcards

Upload a PDF, slide deck, set of notes or a photo of a page, and DeckOwl 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

Why students look for unlimited flashcards

Many students searching for Quizlet-style unlimited flashcards are really asking for a way to turn their own class material into study cards without running out partway through the term. Typed sets are useful, but they rarely match the exact chapter, lecture or slide deck you are being tested on.

Generate flashcards from PDFs, DOCX, PPTX, notes and images
Review with spaced repetition so hard cards come back sooner
Study in the browser on the free plan at no cost
Export to Anki, CSV, PDF or DOCX on Plus

Example cell biology flashcards

Which organelle produces most of a cell's ATP?The mitochondrion, through cellular respiration.

What is the function of ribosomes?They synthesize proteins by translating mRNA into a polypeptide chain.

What does the phospholipid bilayer do?It forms the cell membrane and controls what passes in and out, since its hydrophobic interior blocks most polar molecules.

What is osmosis?The diffusion of water across a selectively permeable membrane, from the side with less solute to the side with more.

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

Generate the full set

Works from 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 know come back less often, and the ones you miss return sooner so you spend time on what you need.

Export when you need to

Plus unlocks unlimited generations with PDF, DOCX, Anki and CSV export. The free plan keeps studying in the browser.

How it works

Add your material

Upload a lecture PDF, a slide deck, typed notes or a photo of a textbook page.

Review the generated cards

Check the flashcards DeckOwl creates, edit any that need changes, and remove the ones you do not need.

Study on a spaced schedule

Open a session each day and let the review schedule decide which cards come back and when.

DeckOwl generates flashcards directly from the files you already have. A biology chapter, a nursing lecture or a scanned handout becomes a deck you can review in the browser. Once you need more than the monthly free allowance, the Plus plan removes the generation limit.

Spaced repetition is what makes the cards stick. Instead of rereading the same deck, you review each card just before you would forget it, which keeps study sessions short and focused.

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Frequently asked questions

How many flashcards should I make for a biology exam?

Aim for one card per distinct term, fact or relationship in the chapter rather than a fixed total. If a card tests two ideas at once, split it, and drop any card you can answer without thinking.

How often should I review flashcards to keep them in memory?

Spaced repetition shows each card again just before you would forget it, so review intervals grow as you learn the material. Short daily sessions usually work better than one long cram before the exam.

Is there a free plan without a flashcard limit?

The free plan includes 3 generations per month and studying in the browser, but no exports. Plus at $39/year or $7.99/month removes the generation limit and adds PDF, DOCX, Anki and CSV export.

Do students get a discount?

Yes, students get 40% off with a school email. No credit card is needed to start.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.