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Turn any document into a quiz with explanations

Upload a lecture PDF, handout or set of notes. DeckOwl writes multiple-choice, true/false and short-answer questions, each with an explanation you can practice in the browser.

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

Making a quiz from your own documents

Most students who need a document quiz maker start with a file they already have: a lecture PDF, a DOCX handout, a slide deck, or photos of textbook pages. DeckOwl reads all of these and builds questions from the actual wording of your material, not from generic topics.

Multiple choice, true/false and short-answer question types
Explanations for every answer, right or wrong
Works with PDF, DOCX, PPTX, plain text notes and page photos
Export to PDF or DOCX on Plus, and QTI 2.1 or Moodle XML on Pro

Example biology quiz questions from a cell structure lecture

Which organelle produces most of a cell's ATP?The mitochondrion. Cellular respiration takes place here and yields most of the cell's ATP.

True or false: plant cells have no ribosomes.False. Ribosomes are found in all living cells, including plant cells, because every cell must make proteins.

What is the main job of the cell membrane?It controls what enters and leaves the cell. It is a selectively permeable phospholipid bilayer.

Why does the nucleus have a double membrane?The nuclear envelope separates DNA from the cytoplasm. Nuclear pores in it control which molecules pass through.

What is osmosis?The diffusion of water across a selectively permeable membrane. Water moves toward the side with higher solute concentration.

Generate the full set

Three question types

Multiple choice, true/false and short-answer questions are generated from the same material, so you can mix recognition and recall.

Explanations on every answer

Each question includes a short explanation, so a wrong answer shows you the reason instead of only marking it wrong.

Works with the files you have

Upload PDF, DOCX, PPTX, plain text notes or photos of pages. Images are read with text recognition.

How it works

Upload your document

Add a PDF, Word file, slide deck, notes or a photo of a page.

Choose question types

Pick multiple choice, true/false, short answer or a mix for your quiz.

Practice and review

Take the quiz in the browser, read the explanations, and retake the questions you missed.

Every question includes an explanation, so practicing a quiz teaches you something even when you get the answer wrong. The free plan includes 3 generations per month with studying in the browser, and paid plans add exports for use in other tools.

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Frequently asked questions

How many questions should a quiz cover per chapter?

Most chapters work well with 10 to 15 questions that mix basic recall with a few application questions. Generate a set, then remove any that repeat the same fact.

Is it better to practice with multiple choice or short answer questions?

Short answer questions force recall from memory, which shows gaps more clearly than recognizing the right option. Multiple choice is quicker to review, so using both gives a fuller check.

Can I export a document quiz to Word or PDF?

Yes, PDF and DOCX export are included on the Plus plan at $39 per year or $7.99 per month. QTI 2.1 and Moodle XML export are on the Pro plan at $14.99 per month.

Is there a free plan for making document quizzes?

Yes, the free plan includes 3 generations per month and studying in the browser, with no credit card needed to start. Students get 40% off with a school email.

Generate free quizzes

Keep exploring the topic

Review the main ideas visually or practice recalling them.