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A mind map creator app that turns your notes into a clear map

Upload a PDF, a document, or photos of your notes. DeckOwl builds a mind map you can edit, expand, and explore branch by branch.

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

Why a mind map creator app helps with dense material

Students and teachers often start with a stack of slides and a blank page, and a mind map creator app shortens the distance between the two. Instead of drawing every connection by hand, you start from the actual text of your lecture or chapter.

Start from your own PDFs, notes, or photographed pages instead of a blank canvas
See the central idea and its main branches at a glance
Expand only the sub-topics you are unsure about
Switch to flashcards or quizzes from the same material when you are ready to practice recall

Example mind map branches for the human heart

Chambers of the heartRight atrium · Right ventricle · Left atrium · Left ventricle

Heart valvesTricuspid · Pulmonary · Mitral · Aortic

Pathway of blood through the heartVena cava to right atrium · Right ventricle to lungs · Pulmonary veins to left atrium · Left ventricle out through aorta

Electrical conduction systemSA node · AV node · Bundle of His · Purkinje fibers

Coronary circulationCoronary arteries supply heart muscle · Coronary veins drain it · Blocked arteries can cause ischemia

Generate the full set

Built from your own material

Start with PDF, DOCX, PPTX, plain text, or photos of pages. Text recognition reads the content so the branches reflect what your course actually covers.

Editable and explorable

Rename branches, add your own notes, and expand sub-topics as far as you need. The map is a working study tool, not a static picture.

Study from the same source

Turn the same notes into flashcards with spaced repetition or quizzes with explanations, so the map is one part of your review.

How it works

Upload your notes

Add a PDF, DOCX, PPTX, text file, or a photo of a page. No credit card is needed to start.

Generate the map

DeckOwl organizes the material into a central topic with main branches and sub-points.

Edit and explore

Adjust the branches, fill gaps with your own notes, and expand each section while you study.

A good map shows how ideas relate, not just what they are. Branches make it easy to see that a concept belongs under one system and depends on another, which is harder to see in a linear summary.

Because the result is editable, you can correct anything the first pass got wrong and keep the map as a living outline of the course as your understanding grows.

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Frequently asked questions

How do I map the human heart without memorizing every label?

Start with the four chambers as main branches, then add valves, blood flow, and the conduction system as separate branches. Keep each sub-point to a few words so you can expand them later.

Why does a mind map help with the human heart?

Blood flow and the electrical conduction system are sequences of connected parts, and a branching map shows those links clearly. Placing each chamber and valve under its own branch makes it easier to recall where it sits.

Can I edit the mind map after it is generated?

Yes. The map is editable and explorable, so you can rename branches, add your own notes, and expand the sections you need.

Is there a free plan, and what costs money?

The Free plan includes 3 generations per month and studying in the browser. Exports such as PDF, DOCX, Anki, and CSV are part of the Plus plan at $99.90/year or $9.99/month.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.