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Turn your lecture slides into a quiz with answers

DeckOwl reads your PDFs, slides and notes and writes multiple-choice, true/false and open questions, each with the correct answer and an explanation.

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 a quiz with answers works better than a video

DeckOwl does not accept video files, but the material behind most lecture videos usually exists as slides, a handout or typed notes. Upload those and DeckOwl builds a quiz with answers that tests the same ideas, so you can check your understanding instead of rewatching the recording.

Questions are drawn only from the material you upload.
Each item shows the correct answer and a one-sentence explanation.
Multiple choice, true/false and open questions are all available.
The free plan includes 3 generations per month, with study in the browser.

Example cell biology quiz questions with answers

Which organelle produces most of a cell's usable energy?Mitochondria. They carry out cellular respiration, which converts glucose and oxygen into ATP.

True or false: plant cells have a cell wall made of cellulose.True. The cellulose wall gives plant cells rigidity, a feature animal cells lack.

What does the cell nucleus store?DNA. It holds the genetic instructions the cell uses to build proteins.

Where does protein synthesis take place?Ribosomes. They read messenger RNA and link amino acids into a polypeptide chain.

Which structure controls what enters and leaves the cell?The cell membrane. Its phospholipid bilayer and embedded proteins allow only selected molecules through.

Generate the full set

Answers and explanations

Every multiple-choice, true/false and short-answer question comes with the correct answer and a short explanation of why it is right.

Built from your material

Upload PDF, DOCX, PPTX, plain text or a photo of a page, and the questions come from that content rather than generic filler.

Study it in the browser

Take the quiz on any device, check each answer as you go, and return to missed questions later.

How it works

Upload your source

Add the slides, handout, PDF or notes from the lecture. Photos of pages are read with text recognition.

Choose a question type

Pick multiple choice, true/false or open questions, then generate the quiz.

Answer and review

Work through the questions, then read the explanation for each answer you got wrong.

Seeing the correct answer right after you commit to your own choice is what makes the feedback useful. Each explanation tells you why the answer is right, which is more helpful than a bare score.

Plus adds unlimited generations and PDF or DOCX export, so you can print a set for a study group. Pro adds QTI 2.1 and Moodle XML export for course platforms.

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Frequently asked questions

How should I use a quiz with answers to study?

Attempt every question before looking at the answer, then read the explanation even when you were right. Retake the missed questions after a day or two to strengthen recall.

Should I check the answer before I finish the question?

No, commit to an answer first, since guessing and then checking gives you a weaker memory trace. Only read the explanation after you have picked or written your response.

Can I export the quiz?

Export to PDF and DOCX is included in the Plus plan at $39 per year or $7.99 per month. QTI 2.1 and Moodle XML export are part of the Pro plan at $14.99 per month.

Is there a free option?

Yes, the free plan includes 3 generations per month and lets you study in the browser, though exports are not included. No credit card is needed to start.

Generate free quizzes

Keep exploring the topic

Review the main ideas visually or practice recalling them.