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Make flashcards from your notes with spaced repetition built in

Upload a PDF, slide deck, set of notes or photo of a textbook page. DeckOwl writes the flashcards and schedules each one for review at the right time.

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 account · 3 sets a month · Creates flashcards in seconds

Why spacing beats cramming

A flashcard maker with spaced repetition removes the slow part of studying, which is deciding what to review and when. Most students know cards work but drop the habit after a week because the pile grows faster than they can sort it.

Paste notes or upload a PDF and get a first deck in minutes
Review sessions show only the cards due that day
Missed cards come back sooner instead of sitting in a pile
Export to Anki, PDF, DOCX or CSV on the Plus plan

Example spaced repetition flashcards

What is spaced repetition?A review method that spaces out repeat study of material, with the gap before each review growing each time you recall an item correctly.

What is the spacing effect?The finding that spreading study sessions over time produces better long-term memory than the same total study crammed into one session.

What did Ebbinghaus describe with the forgetting curve?How memory for newly learned information drops quickly over time unless it is reviewed, with each review slowing the decline.

What usually happens to a card's interval after a failed recall?The interval is reset or shortened, so the card returns sooner for another attempt while the material is still fresh.

How does the SM-2 algorithm set the next review interval?It multiplies the previous interval by an ease factor after each correct answer, and adjusts that ease up or down based on how hard recall felt.

Generate the full set

Cards from your own material

Upload PDF, DOCX, PPTX, plain text or images of pages. Text in photos is read with text recognition, so handwritten-free printed pages work too.

Reviews scheduled for you

Each card comes back at an interval that grows when you recall it and shortens when you miss it, so you spend time on what you are about to forget.

Quizzes and mind maps too

Turn the same material into multiple choice, true/false and short answer quizzes with explanations, or a mind map of the main ideas.

How it works

Upload your material

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

Review the generated cards

Edit, delete or add cards before you study. Keep the ones that test a single idea clearly.

Study on the schedule

Open your daily review in the browser. Rate how well you recalled each card and the spacing adjusts.

Spaced repetition handles that sorting. Cards you know well are pushed further out, and cards you miss return sooner. Over a few weeks the workload shrinks to the material that still needs work, which is the point of the method.

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Turn PDFs, slides and notes into flashcards that return right before you forget them.

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Turn your A-Level biology notes into spaced repetition flashcards.

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Frequently asked questions

How many new flashcards should I add each day?

Many students start with 10 to 20 new cards a day and adjust based on how much daily review time they have. Adding fewer new cards keeps the review queue from growing faster than you can clear it.

Is spaced repetition better than rereading my notes?

Research on retrieval practice and spacing generally finds that testing yourself across several sessions beats rereading the same material in one sitting. Rereading feels productive, but it is harder to tell what you actually remember.

Can I export my flashcards to Anki?

Yes, but exports are a paid feature. The Plus plan at $99.90 per year or $9.99 per month includes Anki, PDF, DOCX and CSV export, while the free plan is for studying in the browser.

Is there a free plan to try it first?

Yes. The free plan includes 3 generations per month and browser study, and you do not need a credit card to start.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.