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A quiz subscription that builds tests from your own notes

Upload a PDF, slides or photos of pages and get multiple-choice, true/false and short answer questions with explanations. Start free, no credit card needed.

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

How a quiz subscription fits your own study material

Anyone comparing a quiz subscription usually wants questions that match what they are actually studying, not a shared library. DeckOwl builds multiple-choice, true/false and short answer questions from your own PDFs, slides, DOCX files or notes, and each one comes with an explanation.

  • Generate questions from PDFs, slides, notes or photos of pages
  • Multiple-choice, true/false and short answer formats with explanations
  • Spaced repetition and flashcards on Plus and Pro
  • Exports to PDF, DOCX, Anki and CSV on paid plans, with QTI and Moodle XML on Pro
Example intro biology quiz questions
Which organelle produces most of a cell's ATP?Mitochondria. They carry out the reactions of cellular respiration that generate most of the cell's ATP.
True or false: Water moves by osmosis toward the side of a membrane with more solute.False. Water moves toward the side with more solute, so it does move toward higher solute concentration, which is why this is true for that direction only if the question is read carefully.
Which molecule carries amino acids to the ribosome during translation?Transfer RNA (tRNA). Each tRNA matches a codon on mRNA through its anticodon and delivers the matching amino acid.
What is the net ATP yield of glycolysis per glucose molecule?2 ATP. Glycolysis uses 2 ATP in its early steps and produces 4, for a net gain of 2.
Which phase of mitosis lines chromosomes up at the cell's center?Metaphase. Spindle fibers attach to the chromosomes and align them along the metaphase plate before they separate.
Generate the full set

Questions from your material

Upload PDFs, DOCX, PPTX, plain notes or photos of pages. Every question comes from the content you already have.

Explanations with every answer

Each multiple-choice, true/false and short answer question includes an explanation, so wrong answers become study points.

Exports on paid plans

Plus exports to PDF, DOCX, Anki and CSV. Pro adds QTI 2.1 and Moodle XML for schools that run an LMS.

How it works

Upload your material

Add a PDF, DOCX, PPTX, text file or image of a page. Photos are read with text recognition.

Choose question types

Pick multiple-choice, true/false or short answer questions, then generate the set.

Study or export

Practice in the browser on the free plan, or export on Plus and Pro.

The Plus plan costs $99.90 per year or $9.99 per month and removes the generation limit. It adds PDF, DOCX and Anki exports along with spaced repetition. Pro at $14.99 per month adds a stronger AI model, bulk upload, and QTI 2.1 and Moodle XML export for schools that use an LMS.

Students get 40% off with a school email. No credit card is needed to start on the free plan, which includes 3 generations per month and browser study.

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Frequently asked questions

How many practice questions should I write for an intro biology unit?

Start with 10 to 15 questions per chapter, covering the main terms, processes and exceptions. Add more where you miss questions on a second attempt.

How do I know if a quiz question is worth keeping?

A good question tests one idea, has one clearly correct answer, and has a short explanation that teaches why the answer is right. Drop questions that only test wording.

What does the Plus plan cost?

Plus costs $99.90 per year or $9.99 per month. It includes unlimited generations, PDF, DOCX, Anki and CSV exports, and spaced repetition.

Are exports included on the free plan?

No. The free plan gives 3 generations per month and study in the browser without exports. QTI 2.1 and Moodle XML export are on Pro.

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Review the main ideas visually or practice recalling them.