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Get plausible wrong answers for your MCQs from your own notes

Upload a PDF, slides or notes and DeckOwl writes multiple-choice questions with answer options, a correct answer and a short explanation for each one.

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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 the wrong options are the hard part

Writing three believable wrong options for each question is usually harder than writing the question itself. DeckOwl works as an MCQ option generator for that step, building the answer choices from the terms, dates and misconceptions that appear in your own notes.

Wrong options built from terms in your own material
An explanation for the correct answer on every question
True/false and open questions available alongside multiple choice
Editable questions so you can adjust difficulty before studying

Example biology MCQ options (cell and molecular basics)

Which organelle produces most of a cell's ATP?Mitochondria. Oxidative phosphorylation in the inner membrane generates most of the cell's ATP.

What is the main function of red blood cells?Transporting oxygen from the lungs to body tissues. Hemoglobin binds oxygen and releases it where it is needed.

Which bond joins adjacent nucleotides in a DNA strand?The phosphodiester bond, linking the phosphate of one nucleotide to the sugar of the next.

In which phase of mitosis do sister chromatids separate?Anaphase. Spindle fibers pull the sister chromatids toward opposite poles of the cell.

Which enzyme unwinds the DNA double helix during replication?Helicase. It breaks the hydrogen bonds between base pairs so each strand can be copied.

Generate the full set

Plausible distractors

Wrong options are drawn from the terms and misconceptions in your own material, so they sound credible without being confusing.

Explanations included

Each question comes with a short reason the correct option is right, which helps you check the answer key before you use the questions.

How it works

Upload your material

Add a PDF, DOCX, PPTX, plain text notes or a photo of a page. Images are read with text recognition.

Generate the questions

DeckOwl writes the question, the correct answer and the wrong options from the content you provided.

Review and study

Check the answer key, edit anything that does not fit your course, then study in the browser or export on a paid plan.

Good distractors come from the same unit of material and look like real candidates to someone who has only half learned the topic. Because every question includes an explanation, you can see why the correct option wins and adjust any item that is too easy or too obvious.

If you teach or write assessments, exports to QTI 2.1 and Moodle XML let you move finished questions into your learning system. Students on the Plus plan can export to PDF or DOCX for printed practice.

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Frequently asked questions

How many wrong options should a multiple-choice question have?

Many exam-style MCQs use three or four wrong options alongside one correct answer, but you should follow the format your course or exam uses. DeckOwl lets you review and edit each question before you rely on it.

How do I write plausible distractors for biology questions?

Base each wrong option on a common misconception or a closely related term from the same unit, such as confusing mitosis with meiosis. Every option should be credible to a student who is still learning the topic but clearly wrong once they know it.

Can I export generated MCQs to Moodle or QTI?

Yes, QTI 2.1 and Moodle XML export are part of the Pro plan at $14.99 per month. PDF, DOCX and Anki export are included on Plus at $39 per year or $7.99 per month.

Is there a free way to try the MCQ option generator?

The free plan includes 3 generations per month and lets you study in the browser, and no credit card is needed to start. Exports require a paid plan.

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