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Turn your notes into mind map questions you can test yourself with

Upload a PDF, DOCX, PPTX, plain notes, or a photo of a page. DeckOwl builds an editable, explorable mind map and quiz questions with explanations from the same material.

Create mind maps nowFree · No credit card required

Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free account · 3 sets a month · Creates mind maps in seconds

How mind map questions help you study

Good mind map questions ask you to explain how one idea connects to another, not just repeat a definition. A branch like equivalent fractions can lead you to ask why 2/4 and 1/2 are the same value, which is the kind of reasoning exams reward.

Questions follow the structure of your own notes, not a generic template.
Each mind map branch can be expanded, collapsed, or edited at any time.
Quiz answers include explanations so wrong answers teach you something.
Start with the free plan and upgrade only when you need unlimited generations or exports.

Example fractions and decimals mind map branches

Equivalent fractionsMultiply or divide numerator and denominator by the same number · Simplify by dividing by the greatest common factor · Cross-multiply to compare two fractions

Converting decimals to fractionsWrite the digits over the place value, so 0.75 becomes 75/100 · Simplify to lowest terms · Tenths, hundredths, and thousandths set the denominator

Adding and subtracting decimalsAlign the decimal points · Pad with zeros where digits are missing · Place the decimal point in the answer directly below the aligned point

Multiplying fractionsMultiply the numerators · Multiply the denominators · Simplify the product

Dividing fractionsKeep the first fraction · Flip the second fraction to its reciprocal · Multiply and simplify the result

Generate the full set

Editable mind maps

Rename branches, move ideas, and add sub-points until the map matches how your course organizes the material.

Quiz questions from the same map

Multiple choice, true/false, and short answer questions are drawn from your content, each with an explanation.

Works with photos

Snap a page from a textbook or handout and text recognition reads it so you can map it like any other file.

How it works

Upload your material

Add a PDF, DOCX, PPTX, pasted notes, or an image of a page. No credit card is needed to start.

Review the mind map

Open the generated map, expand branches, and edit anything that is missing or off target.

Answer the questions

Work through the quiz questions built from your map and check each explanation when you miss one.

DeckOwl reads your notes and produces a mind map with main branches and sub-points, then writes questions that test those links. You can edit the map first so the questions reflect what your instructor actually covered.

The free plan includes 3 generations per month and studying in the browser. Exporting to PDF or DOCX is part of Plus, so you can keep a printed copy of the map for review.

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Turn PDFs and notes into an editable mind map, free to start with 3 generations a month.

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Frequently asked questions

How many mind map questions should I write for a unit on fractions and decimals?

Aim for one or two questions per main branch, such as equivalent fractions, converting decimals, and operations with each. That usually covers a unit without repeating the same idea.

How do I check whether a mind map question is answered correctly?

Compare your answer with the explanation provided, then rework the step that differed. For fraction and decimal problems, confirm by estimating whether the answer size makes sense.

Can I export the mind map and questions?

Yes, but exports are a paid feature. PDF and DOCX export come with Plus, and the free plan lets you study in the browser.

Do I need a credit card to try it?

No. You can start on the free plan without a credit card, and students with a school email get 40% off Plus.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.