Get multiple-choice questions with answers from your own notes
Upload a PDF, slide deck, or set of notes. DeckOwl writes multiple-choice, true/false, and short-answer questions, and each one shows the correct answer with a short explanation.
How the answer key is built
Writing multiple-choice questions with plausible wrong options takes longer than most people expect. DeckOwl works as an MCQ generator with answers for lecture slides, PDFs, and typed notes: you upload the file, choose a question type, and each question comes with the correct option and a short explanation of why it is right.
- Every question shows the correct answer and a one-sentence explanation.
- Distractors are drawn from the same material, so wrong options stay close to what you studied.
- Upload slides, PDFs, notes, or photographed pages.
- Free to start, with no credit card required.
Answer and explanation on every question
Each generated question includes the correct option and a sentence on why it is right, so you can check your reasoning immediately.
Works from your own material
Upload PDF, DOCX, PPTX, plain text, or a photo of a page. Questions are built from the content you provide.
Study in the browser or export
Practice on the free plan at no cost. Plus adds PDF and DOCX export for a clean quiz with its answer key, and Pro adds QTI 2.1 and Moodle XML.
How it works
Upload your notes
Add a PDF, slides, a Word file, or a photo of pages. Text recognition reads the photos.
Choose the question type
Pick multiple-choice, true/false, or short answer, then generate the set.
Check answers and explanations
Review each correct answer and its explanation, then study the questions you missed.
Because the answer and explanation are generated alongside each question, you can check your reasoning right away instead of flipping back through the textbook. The free plan includes 3 generations per month and browser study. Plus, at $99.90/year or $9.99/month, adds unlimited generations and PDF, DOCX, Anki, and CSV export.
Students with a school email get 40% off, and no credit card is needed to start.
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Frequently asked questions
How many questions should I make for a biology unit?
Start with 10 to 20 questions per chapter so you can cover the main ideas without rereading everything. Mix in true/false items to catch common misconceptions, such as confusing osmosis with diffusion.
What makes a good wrong answer in a multiple-choice question?
A good distractor is a plausible wrong answer that reflects a common misconception, such as mistaking mitosis for meiosis. Each wrong option should still be clearly incorrect to someone who understands the concept.
Does the free plan include answers and explanations?
Yes, every question generated on the free plan includes the correct answer and an explanation. The free plan allows 3 generations per month and study in the browser.
Can I export the questions and answer key?
Yes, Plus includes PDF and DOCX export. Pro adds QTI 2.1 and Moodle XML export for learning management systems.
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