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Turn your notes into quiz questions with AI, free to start

DeckOwl reads your PDFs, slides, documents and photos of pages, then writes multiple-choice, true/false and short answer questions with explanations. The free plan includes 3 generations a month, and Plus removes the limit.

Create quizzes nowFree · No credit card required

Free account · 3 sets a month · Creates quizzes in seconds

How a free AI quiz maker fits into your study routine

A free AI quiz maker saves time when you have a chapter to review and no time to write questions by hand. DeckOwl builds practice questions from the material you already have, so the quiz matches your course rather than a generic textbook.

  • Multiple-choice, true/false and short answer formats
  • Explanations for every question, so wrong answers still teach something
  • Students get 40% off with a school email
  • No credit card needed to start the free plan
Example biology quiz questions with answers
Which organelle produces most of the ATP in an animal cell?Mitochondria. They run oxidative phosphorylation, which makes most of the cell's ATP.
True or false: DNA replication is semi-conservative.True. Each new double helix keeps one original strand and gains one newly synthesized strand.
What happens to membrane potential when Na+ channels open?It becomes more positive (depolarizes), because sodium ions flow into the cell down their concentration gradient.
Why does the Calvin cycle require ATP and NADPH?They supply the energy and reducing power needed to fix CO2 into sugar, since the cycle itself does not capture light.
What is the function of the enzyme helicase?It unwinds the DNA double helix by breaking hydrogen bonds between base pairs, creating the replication fork.
Generate the full set

Three question formats

Get multiple-choice, true/false and short answer questions from your own material, each with an explanation.

Works with your files

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

Study in the browser

The free plan lets you take quizzes right in the browser, with 3 generations per month.

How it works

Upload your material

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

Choose the question type

Pick multiple choice, true/false or short answer questions.

Take the quiz and review

Answer each question, then read the explanation before moving on.

The free plan includes 3 generations per month and in-browser study, which is enough to test one unit. Unlimited generations come with Plus at $99.90/year or $9.99/month, and Plus also adds PDF and DOCX export and spaced repetition.

Pro at $14.99/month adds a stronger AI model, bulk upload, and QTI 2.1 and Moodle XML export for instructors who run quizzes in a learning management system.

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Frequently asked questions

How many quiz questions should I make for a biology unit?

Start with 15 to 20 questions per chapter, mixing multiple choice with true/false so you cover both definitions and processes. Retake the quiz after a few days to see what you still miss.

What is the best way to study biology with practice quizzes?

Answer each question before checking the explanation, then restate the explanation in your own words. Spend your next session on the questions you missed.

Is unlimited quiz generation free?

No. The free plan includes 3 generations per month, and unlimited generations are part of Plus at $99.90/year or $9.99/month.

Can I export quizzes to other tools?

Yes, on paid plans. Plus exports PDF and DOCX, and Pro adds QTI 2.1 and Moodle XML for learning management systems.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.