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Practice with AI quiz answers and explanations from your notes

DeckOwl writes multiple-choice, true/false and short-answer practice questions from your PDFs, slides or notes, with an explanation for every answer. It works on material you provide, not on a live graded quiz.

Create quizzes 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 quizzes in seconds

Why practicing from your own notes beats looking up answers

Students who look up AI quiz answers for a graded quiz often end up with a score they cannot repeat on the final. DeckOwl takes your own lecture notes or slides and writes practice questions with the correct answer and a reason for it, so the material sticks.

Questions are written from the pages you provide, not from a generic question bank.
Every answer includes an explanation you can check against your notes.
Photos of printed pages are read with text recognition.
Plus exports to PDF, DOCX, Anki and CSV; Pro adds QTI 2.1 and Moodle XML.

Example intro biology practice questions

Which organelle produces most of a cell's ATP?Mitochondria. They carry out oxidative phosphorylation, the main ATP-producing process in aerobic cells.

True or false: Water moves by osmosis toward the side with the lower solute concentration.False. Water moves toward the side with the higher solute concentration, since it follows the gradient of free water.

Which type of bond links amino acids together in a protein?Peptide bond. It forms by dehydration synthesis between the carboxyl group of one amino acid and the amino group of the next.

True or false: DNA replication is semiconservative.True. Each new double helix keeps one original strand and one newly synthesized strand, as shown by the Meselson-Stahl experiment.

During which phase of mitosis do sister chromatids separate?Anaphase. Spindle fibers pull the sister chromatids toward opposite poles of the cell.

Generate the full set

Explanations for every answer

Each question includes the correct answer and a short reason, so you learn why the other options are wrong.

Three question types

Multiple choice, true/false and short answer, generated from PDFs, DOCX, PPTX, text or photos of pages.

Spaced repetition on Plus

Plus adds spaced repetition and flashcards so the material comes back before you forget it.

How it works

Upload your material

Add a PDF, DOCX, PPTX, text notes or a photo of a printed page.

Choose question types

Pick multiple choice, true/false or short answer questions for the topic you are studying.

Study and retry misses

Answer in the browser, read each explanation and retry the questions you missed.

Each question is built from the pages you supply, so a wrong answer points you back to the part of the source it came from. Free accounts get 3 generations a month and can study in the browser, and Plus adds unlimited generations and spaced repetition.

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Frequently asked questions

How many practice questions should I do before a quiz?

Working through a full set twice, spaced over several days, usually works better than one long cram session. Retry the questions you missed and read each explanation before moving on.

How do I know if I actually understand a topic?

Try to answer without looking at your notes, then explain why each wrong option is wrong. If you can do that on questions you have not seen before, you are in good shape.

Can I export my quiz to Canvas or Moodle?

Moodle XML and QTI 2.1 export are included in Pro at $14.99 per month, and PDF and DOCX export are on Plus. DeckOwl does not connect to Canvas directly.

Is there a free plan?

Yes. The free plan includes 3 generations per month and studying in the browser, and no credit card is needed to start.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.