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Write video-based quiz questions from your lecture notes

Paste a transcript or upload your slides, PDFs or notes, and DeckOwl writes multiple-choice, true/false and short answer questions with explanations.

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Why video lessons need a text version first

Most lecture recordings sit unused after the semester ends, so a student who wants video-based quiz questions usually has to write them by hand. DeckOwl does not read video files, but it does read the text that comes out of one.

  • Caption or transcript text from a lecture recording
  • Slide decks exported as PPTX or PDF
  • Typed notes from a class you watched online
  • Photos of printed handouts, read with text recognition
Example biology quiz questions on the cell cycle
Which organelle produces most of a cell's ATP?Mitochondria, because they carry out oxidative phosphorylation, the main ATP source in aerobic cells.
True or false: mitosis produces four genetically distinct daughter cells.False. Mitosis produces two genetically identical daughter cells, while meiosis produces four.
In which phase of mitosis do sister chromatids separate?Anaphase, because cohesin is cleaved and the chromatids move toward opposite poles.
Why does the cell cycle have checkpoints?They pause progression until conditions such as DNA integrity and chromosome attachment are confirmed, which stops damaged cells from dividing.
What is the main difference between prokaryotic and eukaryotic cells?Eukaryotic cells have a membrane-bound nucleus, while prokaryotes keep their DNA in a nucleoid region with no membrane around it.
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Works from what you have

Accepts PDF, DOCX, PPTX, plain text and photos of pages. Paste a video transcript as plain text.

Three question types

Multiple choice, true/false and short answer, each with an explanation of why the correct answer is right.

Study in the browser

The free plan includes 3 generations a month. Anki and CSV export are on Plus, and QTI 2.1 and Moodle XML export are on Pro.

How it works

Get the transcript

Copy the captions or transcript from your video, or type out the key points from the lecture.

Upload or paste

Add the text as plain notes, or upload slides, PDFs or DOCX files that go with the lesson.

Review and study

Check each question and explanation, then study in the browser or export on a paid plan.

Paste a transcript, slides or your own typed notes, and the generator writes questions with an explanation for each answer. Review them before you study, because automatic transcripts can mishear technical terms and fast speakers.

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Frequently asked questions

How many questions should I write from a 50-minute lecture?

Most people find 15 to 25 questions enough to cover the main ideas. Spread them across the whole lecture so you are not quizzed only on the opening minutes.

What makes a good question for a video lesson?

Ask about a claim the speaker made, a cause and effect relationship, or a step in a process rather than a word said once. Then check the explanation against the recording.

Can DeckOwl read a video file directly?

No. Use the captions or a transcript as plain text, or upload the slides or notes the lecture used.

Which export options are included?

The free plan studies in the browser with no exports. Plus adds PDF, DOCX, Anki and CSV export, and Pro adds QTI 2.1 and Moodle XML.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.