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Anki flashcards explained, plus a faster way to make your own

Anki flashcards are question-and-answer cards that come back at the right time. DeckOwl turns your own PDFs, slides, notes or photos into flashcards with spaced repetition built in.

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How Anki flashcards work and why people use them

Anki flashcards are digital cards with a question or term on the front and an answer on the back. The core idea is spaced repetition: a card reappears just before you would be likely to forget it, so each review strengthens memory without wasted repetition.

  • Each card tests one fact, so you can tell quickly whether you knew it.
  • Spaced repetition shows hard cards more often and easy cards less often.
  • Short answers on the back make self-checking fast during a study session.
  • Reviewing a little each day beats one long cram session before an exam.
Example solar system flashcards
Which planet is closest to the Sun?Mercury orbits closest to the Sun because it is the innermost planet of the solar system.
What is the asteroid belt?It is a ring of rocky debris between Mars and Jupiter, where most asteroids orbit the Sun.
Why is Pluto no longer classified as a major planet?In 2006 the International Astronomical Union reclassified it as a dwarf planet because it has not cleared its orbital neighborhood.
What causes the seasons on Earth?The tilt of Earth's axis, about 23.5 degrees, changes which hemisphere receives more direct sunlight during the year.
Which planet has the most known moons?Saturn has more known moons than any other planet, which is why it is often the answer on quizzes about moons.
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Spaced repetition scheduling

Cards you know come back less often, and cards you miss come back sooner, so review time goes where it helps most.

Built from your material

Upload a PDF, DOCX, PPTX, plain text notes or a photo of a page and get flashcards drawn from that exact content.

Export when you need it

Plus users can export to Anki, CSV, PDF or DOCX, so cards you make here can move into the tools you already use.

How it works

Upload your material

Add a PDF, slide deck, set of notes or a photo of a textbook page. Text in images is read with text recognition.

Review the generated cards

Check the front and back of each flashcard and edit anything that needs a clearer question or answer.

Study on a spaced schedule

Review in the browser each day. Cards come back on a schedule that adapts to how well you recall them.

The format suits any subject with facts to recall, from vocabulary and anatomy to astronomy. The hard part is usually making good cards in the first place, which is where generating them from your own notes or readings saves time.

DeckOwl creates flashcards from your uploaded material and schedules them with spaced repetition. Free accounts get 3 generations per month and browser study, and Plus adds unlimited generations and export to Anki.

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Frequently asked questions

How does spaced repetition help me remember flashcards?

Spaced repetition spaces out reviews so each card returns just before you would forget it. Repeated recall at those intervals strengthens memory more than rereading the same material.

What makes a good flashcard for studying?

A good flashcard asks one clear question on the front and gives a short, specific answer on the back. Avoid cards that pack several facts together, since they are hard to grade honestly.

Can I export my flashcards to Anki?

Yes, export to Anki is available on the Plus plan at $39 per year or $7.99 per month. The Free plan lets you study in the browser but does not include exports.

Do I need a credit card to start?

No, you can start on the Free plan without a credit card. Students can also get 40% off Plus with a school email address.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.