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An MCQ maker app that runs in your browser, with no download

Upload a PDF, slides, notes or a photo of a page and get multiple-choice, true/false or short answer questions with explanations. Nothing to install.

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

What a browser-based MCQ maker gives you

Most students who search for a download want one thing: practice questions built from their own lecture slides before an exam. DeckOwl works as an MCQ maker app that runs in a browser tab, so there is nothing to install and nothing to update.

No download or install: open it in any modern browser.
Works from PDFs, DOCX and PPTX files, plain text notes, and photos of pages.
Multiple-choice, true/false and short answer questions, each with an explanation.
Free plan includes 3 generations per month; Plus and Pro remove the limit and add exports.

Example biology cell structure MCQs

Which organelle is the main site of ATP production in eukaryotic cells?The mitochondrion. It carries out cellular respiration, where most ATP is made through the electron transport chain.

Which molecule carries the genetic code from DNA in the nucleus to the ribosomes?Messenger RNA (mRNA). It is transcribed from DNA and read by ribosomes to build proteins.

True or false: plant cells do not have a plasma membrane.False. All living cells have a plasma membrane; plant cells also have a cell wall outside it.

Which structure controls what enters and leaves the cell?The plasma membrane. Its phospholipid bilayer with embedded proteins makes it selectively permeable.

Where in a eukaryotic cell are proteins modified and sorted for secretion?The Golgi apparatus. It receives vesicles from the endoplasmic reticulum and sends proteins to their final destinations.

Generate the full set

Questions from your own material

Start from the PDF, DOCX, PPTX, text notes or page photos you already have, so the practice matches what your instructor covers.

Explanations for every answer

Each multiple-choice, true/false and short answer question comes with an explanation, so a wrong answer teaches you why.

Study in the browser

Open a tab and start. The free plan includes studying in the browser, with no software to install and no credit card needed to begin.

How it works

Upload your material

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

Choose the question types

Pick multiple-choice, true/false or short answer questions, then generate a set from your content.

Practice and review

Answer the questions, read the explanations for the ones you missed, and go back to the weak spots.

Generating questions from your own notes works better than hunting for a ready-made quiz, because the questions cover the exact chapter, slides or readings you were assigned. Each question includes an explanation, which is where much of the learning happens.

If you later need your questions somewhere else, paid plans export them. Plus includes PDF, DOCX, Anki and CSV export, and Pro adds QTI 2.1 and Moodle XML for learning management systems.

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Frequently asked questions

How many multiple-choice questions should I practice in one session?

There is no fixed number that suits everyone. A focused set of 10 to 20 questions, with the explanation read after each miss, is a practical starting point.

Do multiple-choice questions help with memorizing or with understanding?

They can do both, depending on how they are written. Recall-style questions reinforce facts, while scenario questions test whether you can apply them, and the explanations show the reasoning behind each answer.

Do I need to download anything to use DeckOwl?

No. The Free plan lets you study in the browser, with 3 generations per month and no credit card needed to start.

Can I export my questions?

Exports are paid features. PDF, DOCX, Anki and CSV export are on the Plus plan at $39/year or $7.99/month, and QTI 2.1 and Moodle XML export are on the Pro plan at $14.99/month.

Generate free quizzes

Keep exploring the topic

Review the main ideas visually or practice recalling them.