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Turn your own study material into a practice test with AI

Upload a PDF, slide deck, Word file or photo of a page. DeckOwl writes multiple choice, true/false and short answer questions from that material, with an explanation for every answer.

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

How a generated practice test fits your study plan

A fixed question bank only covers what its publisher chose to include, which is why many students want a limbiks-style practice test generator that builds questions from the material they already have. DeckOwl reads PDF, DOCX and PPTX files, plain notes and photos of pages, then writes multiple choice, true/false and short answer questions with explanations. It is not affiliated with Limbiks and does not include its question bank.

Questions drawn only from the files you upload
Explanations for every multiple choice, true/false and short answer item
No credit card needed to start on the free plan
Students get 40% off Plus with a school email

Example practice questions from a general biology unit

Which organelle produces most of a cell's ATP?The mitochondrion. It carries out most of the oxidative phosphorylation that makes ATP, so it is the main energy source for the cell.

True or false: Water moves by osmosis toward the side of a membrane with more solute.True. Water moves toward the region with higher solute concentration, where its free water concentration is lower.

Short answer: Why is the lagging strand of DNA copied in fragments?DNA polymerase can only add nucleotides to the 3' end of a growing strand, so the lagging strand is synthesized in short Okazaki fragments.

Which phase of mitosis lines chromosomes up along the cell's center?Metaphase. Spindle fibers attach to the kinetochores and pull the chromosomes into a single row at the metaphase plate.

What is the main role of an enzyme in a chemical reaction?An enzyme lowers the activation energy needed for a reaction, so it proceeds faster and the enzyme is not consumed.

Generate the full set

Multiple choice, true/false and short answer

Each question comes with an explanation, so a wrong answer still teaches you something.

Built from your own material

Upload PDF, DOCX, PPTX, plain notes or photos of pages, and the questions come from that content.

Exports when you need them

Plus adds PDF, DOCX, Anki and CSV export. Pro adds QTI 2.1 and Moodle XML for course platforms.

How it works

Upload your material

Add a PDF, slide deck, Word file, text notes or a photo of a page.

Choose the question types

Pick multiple choice, true/false or short answer, then generate the test.

Study and export

Take the test in the browser, review the explanations, and export on a paid plan.

Explanations appear after each answer, so you can see why an option is wrong and find the section of your notes that covers it. The free plan includes 3 generations per month and studying in the browser. Plus, at $39/year or $7.99/month, adds unlimited generations and PDF, DOCX, Anki and CSV export.

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Frequently asked questions

How many practice questions should I answer before an exam?

There is no fixed number, but working through a full test and then retaking every missed question usually helps more than repeating easy ones. Try the missed questions again after a day or two.

Should I study the wrong answers or the right ones?

Focus on the wrong answers, since they show the gaps in your understanding. Read the explanation, find the matching section in your notes, and restate the idea in your own words.

Can I export generated tests to my course platform?

QTI 2.1 and Moodle XML export are on the Pro plan at $14.99 per month. PDF, DOCX, Anki and CSV export are included in Plus.

Is there a free plan?

Yes. The free plan includes 3 generations per month and studying in the browser, but no exports. No credit card is needed to start.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.