Turn any PDF or set of notes into online flashcards with AI
Upload a PDF, slides, notes or a photo of a page. DeckOwl drafts the cards and schedules your reviews so you remember them longer.
Making online flashcards you will actually review
Start with the material you already have. Here is how to make online flashcards from a lecture PDF, a DOCX handout, a PPTX deck, plain notes or a photo of a textbook page. Upload the file, and DeckOwl extracts the text and drafts question-and-answer cards you can edit before studying.
- Accepts PDF, DOCX, PPTX, plain text and images of pages.
- Each card has a question on the front and an answer on the back.
- The free plan includes 3 generations per month and browser study.
- Plus adds unlimited generations and PDF, DOCX, Anki and CSV export.
Works from your files
Upload PDF, DOCX, PPTX, plain text notes or a photo of a page. Text in images is read with text recognition.
Spaced repetition built in
Cards come back just before you are likely to forget them, so review time goes where it helps most.
Study in the browser
The free plan includes browser study. Plus adds exports to PDF, DOCX, Anki and CSV.
How it works
Upload your material
Add a PDF, slides, notes or images of pages.
Review and edit the cards
Fix any card that misses the point before you start studying.
Study on a schedule
Rate each card and let spaced repetition set the next review.
Spaced repetition does the rest. Cards you miss come back sooner, and cards you know move out to longer gaps, so short daily sessions cover more material than rereading. Free accounts can study in the browser, while exporting to PDF, DOCX, Anki or CSV is part of the Plus plan.
Explore related topics
How to Make Flash Cards for Students
Flash card tips for students, plus AI cards built from your own notes.
Do Flashcards Help With Studying?
How flashcards improve memory, and how to make your own from class material with AI.
How to Use Flashcards
Study methods for flashcards and a way to build a spaced repetition deck from your notes.
Make your own flashcards from notes
Turn your notes, slides or PDFs into a flashcard deck with spaced repetition.
How many flashcards is too many?
Practical limits for deck size and daily reviews, and how to split notes.
How Many Flashcards Per Day to Study
Choose a daily flashcard target you can sustain, and build the deck from your own notes.
Flashcard count guide
How many flashcards to make per topic, with tips for splitting cards and keeping each set focused.
Free Flashcards Online From Your Notes
Turn your PDFs, slides or notes into free flashcards, then study them in your browser.
Frequently asked questions
How many flashcards should I make for the Pythagorean theorem?
Start with one card for the theorem itself, then add cards for each term and for worked examples like finding a missing side. Ten to twenty focused cards is usually enough to cover one lesson, and you can add more as you find gaps.
What should a good Pythagorean theorem flashcard look like?
The front should ask one specific question, such as what the hypotenuse is or how to find a missing leg. The back should give a short answer with the formula or a single worked step, so you can check yourself in seconds.
Do I need to pay to export my flashcards?
Yes. Free accounts study in the browser, while PDF, DOCX, Anki and CSV export are part of the Plus plan at $99.90/year or $9.99/month.
Can I start without a credit card?
Yes. No credit card is needed to start on the free plan, which includes 3 generations per month.
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