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Get mind map ideas from your own PDFs and notes

Paste notes or upload a PDF, and get a mind map with main branches and sub-points you can rearrange, expand, and explore.

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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 mind maps in seconds

How to choose good mind map ideas

Strong mind map ideas start with the material you already have. A chapter, lecture slide deck, or set of notes already contains a central topic and natural sub-topics, so the map is mostly a matter of sorting them into branches.

Start with one central question or topic, not a full chapter title
Limit each branch to one idea you could explain in a sentence
Add cross-links between branches where cause and effect connect them
Review the map from the center outward before you test yourself

Example digestive system mind map branches (biology)

Mouth and esophagusTeeth and saliva begin mechanical and chemical breakdown · Tongue shapes food into a bolus · Esophagus moves food to the stomach by peristalsis

StomachHydrochloric acid lowers pH to activate pepsin · Pepsin begins protein digestion · Churning mixes food into chyme

Small intestineDuodenum receives bile and pancreatic enzymes · Jejunum and ileum absorb most nutrients · Villi increase surface area for absorption

Liver, gallbladder, and pancreasLiver produces bile to emulsify fats · Gallbladder stores and concentrates bile · Pancreas releases digestive enzymes and bicarbonate

Large intestineAbsorbs water and electrolytes · Forms and stores feces · Gut bacteria ferment some undigested carbohydrates

Generate the full set

Branches from your material

The generator pulls main topics and supporting details from your file, so the branches match what your course actually covers.

Editable and explorable

Rename branches, move nodes, and collapse sections to focus on one part of the map at a time.

Works with photos too

Snap a page from a textbook or handout and the image is read with text recognition, then turned into a map.

How it works

Add your notes or file

Upload a PDF, DOCX, PPTX, or paste plain text. Photos of pages work as well.

Generate the map

DeckOwl proposes a central topic with main branches and sub-points drawn from your material.

Edit and study

Adjust the branches you want, then explore the map in your browser to review the connections.

A useful test is whether each branch could stand alone as a question. If a branch is only a label like "Other facts," it is probably too vague to study. Rename it with the specific idea it holds, such as "Enzymes that digest protein."

Keep the layout readable. Three to seven main branches, each with two to four sub-points, is usually enough to see the whole topic without losing detail.

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Frequently asked questions

How many branches should a study mind map have?

Most study maps work best with three to seven main branches, each holding two to four sub-points. Fewer branches often hide key structure, and more than seven becomes hard to scan.

What belongs in a digestive system mind map?

Start with the path food takes through the body, then add each organ and the one or two functions it performs, such as the stomach's acid and pepsin. Accessory organs like the liver and pancreas can form their own branch.

Can I export my mind map?

Exporting is a paid feature. Plus includes PDF and DOCX export, and the free plan lets you study and explore maps in the browser.

Do I need a credit card to try it?

No. The free plan includes 3 generations per month and does not require a credit card. Students can get 40% off a paid plan with a school email.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.