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Turn your own notes into a quiz with answers and explanations

DeckOwl builds multiple-choice, true/false and short-answer questions from your PDFs, slides or notes, with the correct answer and an explanation for each one. No credit card needed to start.

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 build your own quiz instead of searching for answer keys

A Quizizz-style quiz with answers is most useful when the questions come from your own class material. Ready-made answer keys for someone else's game may not match your course, and copying them skips the recall that makes studying work. DeckOwl writes the questions from the notes or slides you give it, so the answer key matches what your teacher covered.

Questions generated from your own PDFs, slides, DOCX files or notes
Correct answer and explanation included with every question
Multiple-choice, true/false and short-answer formats
Free plan with 3 generations per month, studied in the browser

Example cell biology quiz questions with answers

Which organelle carries out most of the ATP production in aerobic respiration in eukaryotic cells?The mitochondrion. Its inner membrane holds the electron transport chain, which drives most ATP synthesis.

True or false: animal cells have a rigid cell wall made of cellulose.False. Animal cells have no cell wall, so their shape depends on the cytoskeleton and plasma membrane.

Why is the cell membrane described as selectively permeable?It allows small nonpolar molecules to pass through freely while blocking large or charged molecules, because the hydrophobic core of the phospholipid bilayer resists them.

What is the main job of ribosomes?They synthesize proteins by translating mRNA into polypeptide chains.

Where does the Krebs cycle take place in a eukaryotic cell?In the mitochondrial matrix. It produces NADH and FADH2, which feed electrons into the electron transport chain.

Generate the full set

Answers with explanations

Every question comes with its correct answer and a short explanation of why it is right, so you learn the reasoning, not just the letter.

Built from your material

Upload a PDF, DOCX, PPTX, text file or a photo of a page. Questions are drawn from what you actually studied.

Multiple formats

Get multiple-choice, true/false or open questions, and study them in the browser on the free plan.

How it works

Upload your material

Add a PDF, slide deck, document, plain text notes or a photo of a page.

Choose a question type

Pick multiple-choice, true/false or short answer, then generate your quiz.

Check answers and review

Answer the questions, read the explanations, and save the misses for another round.

Each question includes the correct answer and a one-sentence explanation. Try answering first, then read the explanation to see where your reasoning went wrong. Over several sessions, the questions you miss are the ones worth reviewing most.

If you teach, the Plus plan exports questions to PDF or DOCX, and the Pro plan exports QTI 2.1 and Moodle XML for learning management systems.

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Frequently asked questions

How do I check whether my answers to practice questions are right?

Read the explanation DeckOwl gives after each question, then compare it with your class notes or textbook. If an explanation does not match your course material, treat it as a prompt to look up the topic again.

How many practice questions should I answer in one sitting?

Shorter sessions of focused questions usually work better than one long session. Start with a small set, review every miss, and come back to the missed questions later in the week.

Can I export my quiz questions with answers?

The free plan lets you study in the browser without exports. Plus includes PDF and DOCX export, and Pro adds QTI 2.1 and Moodle XML export.

Is there a free plan?

Yes. The free plan includes 3 generations per month and browser study. Students can get 40% off Plus with a school email, 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.