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Study from a flashcard UI built from your own notes

Upload a PDF, slides, notes or a photo of a page. DeckOwl builds the cards and spaces your reviews so you spend time on what you're about to forget.

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What a good flashcard UI does

A good flashcard UI keeps one question on screen, hides the answer until you ask for it, and tracks how well you knew each card. DeckOwl works this way, with cards generated from your own PDFs, slides, notes or photos of pages.

  • Keep each card to one idea so you can judge recall in a second.
  • Write answers in your own words, then compare them to the source.
  • Review new cards the same day, then let the schedule space them out.
  • Regenerate cards from a fresh section of notes instead of rereading the whole file.
Example Newton's laws of motion flashcards
State Newton's first law in your own words.An object stays at rest or in uniform motion unless a net external force acts on it.
What does Newton's second law state?Net force equals mass times acceleration (F = ma), so acceleration is proportional to net force and inversely proportional to mass.
What is Newton's third law?For every action force there is an equal and opposite reaction force, acting on a different object.
Why does a passenger lurch forward when a car brakes suddenly?Inertia: the body keeps moving at the car's original speed until a seatbelt or the seat applies a force to stop it.
What is the SI unit of force?The newton (N), equal to 1 kg m/s^2.
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Send PDFs, DOCX and PPTX files, plain text notes, or images. Photos of pages are read with text recognition.

Spaced repetition

Each card is scheduled based on how well you recalled it, so hard cards come back sooner and easy ones less often.

Study in the browser

The free plan lets you study generated flashcards directly in your browser, with 3 generations per month.

How it works

Upload your material

Add the lecture slides, chapter PDF or notes you need to learn.

Review the generated cards

Check the questions and answers, then edit anything that doesn't match your course.

Study on a schedule

Open a short session each day and let spaced repetition decide which cards come up next.

Cards work best when they test understanding rather than word matching. For a physics unit, that means a card asking what happens to an object when the net force is zero, not just a card that repeats the law's name.

When you finish a unit, you can review the cards in the browser on the free plan. Plus adds exports to PDF, DOCX, Anki and CSV, plus unlimited generations and spaced repetition.

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Frequently asked questions

How many flashcards should I make for Newton's laws of motion?

Start with one card for each law and one for each key term, such as inertia, net force and reaction force, which is usually 10 to 15 cards for a single chapter. Add cards for worked examples once the basics feel automatic.

Why do the three laws matter for physics exams?

Most introductory mechanics problems start with a free-body diagram and apply the second law, so being able to state each law and use it on a problem is the core skill. Practice cards that ask you to apply the laws, not just recite them.

Can I export these flashcards to Anki?

Yes, but export is a paid feature. Plus includes PDF, DOCX, Anki and CSV export, while the free plan lets you study in the browser.

Do I need a credit card to try it?

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

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Keep exploring the topic

Review the main ideas visually or practice recalling them.