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Turn your notes into an editable online mind map

Upload a PDF, DOCX, PPTX, text notes, or a photo of a page, and DeckOwl builds a mind map you can edit and explore branch by branch.

Create mind maps nowFree · No credit card required

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

How an online mind map helps you study

Most study material arrives as a long PDF, a slide deck, or a page of messy notes, and the hard part is seeing how the ideas connect. DeckOwl reads that material and builds an online mind map with the main topic at the center and subtopics branching outward, so you can see the structure before you memorize the details.

  • Turns PDFs, DOCX and PPTX files, notes, and page photos into a mind map
  • Keeps the main topic central with subtopics branching outward
  • Lets you edit labels and move branches to match your own outline
  • Pairs with flashcards and quizzes generated from the same material
Example mind map branches for fractions and decimals
Equivalent fractionsMultiply or divide the numerator and denominator by the same number · Cross-multiplication to check · Simplify to lowest terms
Converting fractions to decimalsDivide the numerator by the denominator · Terminating versus repeating decimals · Denominators of 10, 100, or 1000 convert directly
Adding and subtracting decimalsLine up the decimal points · Pad with zeros to equal length · Place the decimal point in the answer
Multiplying fractionsMultiply numerators and multiply denominators · Simplify before multiplying · Convert mixed numbers to improper fractions first
Comparing fractions and decimalsConvert both to decimals or both to fractions · Use a common denominator · Place values on a number line
Generate the full set

Built from your own material

Start with the PDF, slides, or notes you already have. DeckOwl reads the text and pulls out the main topic and its subtopics.

Editable branches

Rename a node, move a subtopic under a different parent, or add a branch the generator missed so the map matches how you think about the material.

Explorable structure

Expand the branches you need and collapse the ones you know. Following the path from the central idea to the details makes relationships easier to remember.

How it works

Upload your material

Add a PDF, DOCX, PPTX, plain text notes, or a photo of a page. Text recognition reads the images.

Generate the map

DeckOwl sorts the content into a central topic with branches and sub-branches.

Edit and explore

Adjust labels and structure, then click through the branches to study the connections.

Each branch is editable. Rename a node, move a subtopic under a different parent, or expand a branch to see the detail underneath. Collapse the parts you already know and focus on the rest.

The free plan covers three generations a month, and you can study in the browser. Plus adds unlimited generations and exports for PDF, DOCX, Anki, and CSV.

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Frequently asked questions

How do I organize fractions and decimals on a mind map?

Start with the main topic in the center, then create branches for equivalent fractions, converting between fractions and decimals, and operations with each. Add sub-branches for the steps and rules under each operation.

What should a fractions and decimals mind map include?

Include the core rules, such as simplifying fractions and lining up decimal points, plus the places where the two forms meet, like converting a fraction to a decimal. Check each branch against your textbook or class notes so the map reflects what you will be tested on.

Is the online mind map free to use?

The free plan includes three generations per month, and you can study in the browser. Plus, at $99.90/year or $9.99/month, adds unlimited generations and exports.

Can I export my mind map?

Exports for PDF, DOCX, Anki, and CSV are part of the Plus plan, so the free plan keeps your work in the browser. Students can get 40% off with a school email.

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