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Turn class notes and slides into free flashcards

Upload a PDF, a slide deck, typed notes or a photo of a textbook page. DeckOwl builds flashcards you can review in the browser for free, with spaced repetition to bring back the cards you miss.

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

Choosing a free flashcard app for students

A free flashcard app for students should let you start with your own class material, not a generic deck you have to rebuild by hand. DeckOwl reads your lecture slides, PDFs and notes and turns them into question-and-answer cards you can review right away.

Flashcards generated from PDFs, DOCX, PPTX, text notes and photos of pages
Spaced repetition scheduling in the browser on the free plan
Three generations per month at no cost, with no credit card to start
Exports to Anki, CSV, PDF and DOCX on Plus, with a 40% student discount using a school email

Example intro biology flashcards for students

Which organelle produces most of a cell's ATP?The mitochondrion, through cellular respiration. Its inner membrane hosts the electron transport chain.

What is the main job of the cell membrane?It controls what enters and leaves the cell, acting as a selectively permeable phospholipid bilayer.

What is osmosis?The movement of water across a semipermeable membrane from a region of lower solute concentration to higher solute concentration.

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

What does RNA polymerase do?It synthesizes RNA from a DNA template during transcription.

Generate the full set

Works with what you already have

Upload PDF, DOCX, PPTX, plain text or images. Photos of pages are read with text recognition, so handwritten-free printed notes work well.

Spaced repetition built in

Cards you struggle with come back sooner, and cards you know fade into longer intervals, so you spend time on what you need.

Free to start

The free plan includes 3 generations per month and browser study. No credit card is needed to begin.

How it works

Upload your material

Add a PDF, slide deck, document, text file or photo of your notes.

Review the cards

Check the flashcards DeckOwl generates and edit any that need a clearer question or answer.

Study on a schedule

Work through the deck in short sessions and let spaced repetition decide what comes back next.

Good cards come from focused content. Make one card for each term, definition or process, and split long chapters into smaller decks so each session stays manageable. Review in short blocks, say the answer aloud before flipping the card, and let spaced repetition handle the timing.

If you want to move cards into another tool later, the paid Plus plan exports to PDF, DOCX, Anki and CSV.

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Frequently asked questions

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

Aim for one card per key term, definition or process from each lecture, then add cards for anything you keep missing. Splitting a long chapter into smaller decks makes daily review easier to keep up with.

How do I study flashcards effectively?

Review in short sessions, try to say the answer before you flip the card, and be honest when you miss one. Spaced repetition then brings the difficult cards back sooner than the ones you already know.

Is DeckOwl really free?

The free plan includes 3 generations per month and studying in the browser, with no credit card needed. Exports to PDF, DOCX, Anki and CSV are part of the paid Plus plan.

Can I make flashcards from a photo of my notes?

Yes. Photos of pages are read with text recognition, and you can also upload PDF, DOCX, PPTX or plain text files.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.