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Turn a YouTube lecture into a quiz with AI

Paste a lecture transcript, notes or slides and get multiple-choice, true/false and short-answer questions with explanations. Free to start, no credit card needed.

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

From a YouTube lecture to a quiz in three steps

Watching a long YouTube lecture is easy, but the material fades fast unless you test yourself on it. DeckOwl works as an AI quiz generator for YouTube lectures through the transcript: copy the captions into a text file, upload it, and get questions with explanations.

Paste the transcript or your timestamped notes as plain text.
Choose multiple-choice, true/false or short-answer questions.
Read the explanation after each answer, right or wrong.
Export to PDF or DOCX on Plus, or to QTI and Moodle XML on Pro.

Example Newton's laws of motion quiz questions

Which law says an object stays at rest or in constant motion unless a net force acts on it?Newton's first law, the law of inertia. Objects resist changes to their motion, so a net force is needed to change it.

According to Newton's second law, how are force, mass and acceleration related?F = ma: net force equals mass times acceleration. For the same force, a heavier object accelerates less.

A rocket pushes exhaust gas downward. What does Newton's third law say about the force on the rocket?The gas pushes the rocket upward with an equal and opposite force, which is what accelerates the rocket upward.

True or false: a book resting on a table has no forces acting on it.False. Gravity pulls the book down and the table pushes up with an equal force, so the net force is zero and the book stays at rest.

What is the SI unit of force?The newton (N), defined as 1 kg·m/s², which follows directly from F = ma.

Generate the full set

Works from text and files

DeckOwl reads PDF, DOCX, PPTX, plain text and photos of pages, so a transcript or notes from a video can become a quiz in one upload.

Explanations for every answer

Each question comes with an explanation of why the correct answer is right, so a wrong guess becomes a short lesson.

Questions you can study in the browser

The free plan lets you study generated quizzes right away in the browser, with 3 generations per month and no credit card to start.

How it works

Copy the transcript or notes

Take the captions from the video, or type your timestamped notes, and save them as a plain text file.

Pick the question types

Choose multiple-choice, true/false or short-answer questions, then generate the quiz.

Answer and read the explanations

Work through the quiz, then read the explanation after each answer, whether you were right or wrong.

DeckOwl does not take YouTube links, so the workflow runs through text. Notes you typed while watching, slide decks and PDFs from the course work the same way, and photos of handwritten pages are read with text recognition.

Quiz yourself within a day of watching, then again a few days later, because spaced practice holds up better than one long review session.

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Frequently asked questions

How soon after a lecture should I quiz myself?

Within 24 hours is a good window, since a short review soon after learning reduces forgetting. Test again a few days later, when recall takes more effort and sticks better.

What should I do with the questions I get wrong?

Read the explanation, then retry the same question a few hours later without looking at the answer. Keep missed questions in a separate set until you answer them correctly on two separate attempts.

Can DeckOwl take a YouTube link directly?

No. It reads PDF, DOCX, PPTX, plain text and images, so copy the transcript or your notes into a text file and upload that instead.

Which plan lets me export quizzes?

Plus ($39/year or $7.99/month) includes PDF, DOCX, Anki and CSV export, and Pro ($14.99/month) adds QTI 2.1 and Moodle XML. The free plan gives 3 generations per month with study in the browser only.

Generate free quizzes

Keep exploring the topic

Review the main ideas visually or practice recalling them.