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Upload a file and get an AI quiz with explanations

Drop in a PDF, slide deck, Word document or photo of your notes. DeckOwl writes multiple-choice, true/false and open questions, each with an explanation of the answer.

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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 build the quiz from your own file

Your lecture slides and reading notes already contain the questions your instructor is likely to ask. An AI quiz maker with file upload turns that material into practice questions in a few minutes, so you spend time answering instead of writing items from scratch.

Upload a PDF, DOCX, PPTX, text file or photo of a page
Choose multiple choice, true/false or short answer questions
Read an explanation for every answer, right or wrong
Export to PDF or DOCX on the Plus plan, or to QTI and Moodle XML on Pro

Example biology quiz questions from uploaded notes

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

True or false: plant cell walls are made mainly of cellulose.True. The rigid cellulose wall gives plant cells their shape and keeps them from bursting in dilute water.

Why does a red blood cell swell and possibly burst in pure water?Water moves into the cell by osmosis because the cytoplasm is more concentrated than the pure water outside.

What is the main job of the Golgi apparatus?Modifying, sorting and packaging proteins and lipids. It receives materials from the endoplasmic reticulum and ships them in vesicles.

True or false: DNA replication is semiconservative.True. Each new double helix keeps one original strand and gains one newly made strand, as shown in the Meselson and Stahl experiment.

Generate the full set

Many file types

Upload PDF, DOCX, PPTX, plain text notes or photos of pages. Photos are read with text recognition, so handwritten-to-typed pages still work when the text is legible.

Three question formats

Choose multiple choice, true/false or short answer questions, or mix them in one quiz so you practice recognition and recall.

Explanations on every answer

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

How it works

Upload your material

Add the file or paste your notes. The quiz is built only from what you give it, so it matches your course, not a generic textbook.

Pick the question types

Select multiple choice, true/false, short answer or a mix, and choose how many questions you want from the material.

Take the quiz and review

Answer in the browser, read the explanation for each item, and retake the questions you missed until they feel automatic.

Generating from your own file also keeps the quiz honest. Every question points back to a specific passage, which makes it easier to check a question against the source when an explanation does not quite match what your professor said.

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Frequently asked questions

What files can I upload to make a quiz?

You can upload PDF, DOCX and PPTX files, plain text or notes, and images such as photos of pages, which are read with text recognition.

How many quiz questions should I write for one biology chapter?

Ten to twenty questions usually cover the main terms and processes in a single chapter. Generate a larger set, then keep the questions that test ideas you still find confusing.

Can I export the quiz I generate?

Exports are a paid feature. Plus includes PDF, DOCX, Anki and CSV export, and Pro adds QTI 2.1 and Moodle XML export for learning management systems.

How should I study from a generated quiz?

Answer each question before checking your notes, then read the explanation for every item you missed. Retake the missed questions after a short break so you are testing recall, not memory of the last attempt.

Generate free quizzes

Keep exploring the topic

Review the main ideas visually or practice recalling them.