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Turn math notes and PDFs into flashcards with AI

Upload a chapter, a problem set or a photo of your notebook. DeckOwl reads the text and 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 a math flashcard generator works better with your own material

A math flash card generator is most useful when it works from your own material instead of generic problems. Your course PDF, lecture slides or a photo of a worked example from class can become flashcards that match what your instructor actually tests.

Formulas and theorems with their conditions
Definitions of terms like derivative, mean or vector
Worked-problem steps as short prompts
Practice cards for each section of a chapter

Example algebra and geometry flashcards

What is the quadratic formula?For ax² + bx + c = 0, x = (−b ± √(b² − 4ac)) / 2a.

What is the derivative of sin(x)?cos(x), because the derivative of sine is cosine.

What is the Pythagorean theorem?In a right triangle, a² + b² = c², where c is the hypotenuse opposite the right angle.

What is the area of a circle with radius r?πr², because area grows with the square of the radius.

What is the integral of 1/x with respect to x?ln|x| + C, where C is the constant of integration.

Generate the full set

Reads your math materials

Upload PDFs, DOCX, PPTX, plain text notes or images. Photos of pages are read with text recognition.

Spaced repetition built in

Cards you find hard come back sooner, and cards you know move to longer gaps between reviews.

Quizzes and mind maps too

Generate multiple choice, true/false and short answer quizzes with explanations, or a mind map of a chapter's main topics.

How it works

Upload your material

Add a PDF, slides, notes or a photo of a page from your textbook or class.

Review the flashcards

Check the generated cards and keep the ones that match what your course actually covers.

Study on a schedule

Spaced repetition shows each card again at the right time so formulas stick.

For math, the most effective cards usually hold one idea per side: a theorem on the front and its conditions on the back, or a problem type on the front and its first step on the back. Spaced repetition then brings back the cards you miss more often, so formulas stick without a night of rereading.

DeckOwl is free to start, with 3 generations per month and studying in the browser. Paid plans add unlimited generations and export to Anki or CSV so you can review in other tools.

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Frequently asked questions

How many flashcards should I make for a math chapter?

There is no fixed number, but many students make one card per formula, definition or problem type in the chapter. Start with the core ideas and add more after your first review sessions.

Should I study math flashcards by memorizing answers?

Cards work best for formulas, definitions and steps you need to recall quickly. For problem-solving, pair them with working full problems by hand so you can apply the formulas.

Can I export the flashcards?

Export to Anki and CSV is included in the Plus plan. The free plan lets you study in the browser, with 3 generations per month.

Do I need a credit card to start?

No. You can start on the free plan without a credit card, and students get 40% off with a school email.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.