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Study from a mind map built from your own PDFs and notes

Upload a lecture PDF, a page of typed notes, or a photo of a textbook page. DeckOwl builds a mind map with main topics and sub-points you can rearrange, expand, and quiz yourself on.

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 · First set needs no signup · Creates mind maps in seconds

How a mind map study app helps you learn structure

Most students who try a mind map study app start with a blank page and end up copying their lecture slides onto it. The useful part of a map is the hierarchy: which ideas sit under which, and how they connect. A generator that reads your own material gives you that skeleton in a minute, so your time goes to understanding the links.

Branches follow the order of your source, so the map matches your lecture or chapter.
Every branch can be edited, merged, or expanded without starting over.
Spaced repetition flashcards and quizzes can be built from the same material.
Exports to PDF, DOCX, Anki, or CSV are available on paid plans; the free plan studies in the browser.

Example nervous system mind map branches

Central nervous systemBrain · Spinal cord · Processes and sends signals

Peripheral nervous systemSomatic nerves · Autonomic nerves · Links the CNS to limbs and organs

Autonomic nervous systemSympathetic · Parasympathetic · Enteric system

Neuron structureDendrites · Cell body · Axon · Myelin sheath

Action potentialResting potential · Depolarization · Repolarization

Generate the full set

Built from your material

Upload PDF, DOCX, PPTX, plain text, or a photo of a page. Text recognition reads images, so handwritten-to-typed notes can become branches too.

Editable and explorable

Rename a branch, add a sub-point, or collapse a section you already know. The map stays yours to reshape as you learn.

Study beyond the map

Turn the same material into flashcards with spaced repetition or into quizzes with explanations when you want to test recall, not just recognition.

How it works

Upload your notes

Add a PDF, a Word file, slides, or pasted text. No credit card is needed to start.

Review the generated map

Scan the main branches first, then open the sub-points where your notes are thin or confusing.

Edit and test yourself

Reshape the map to match your course, then switch to flashcards or a quiz on the same topics.

A map is only a starting point. Once the branches are right, you can test yourself on each one, moving from recognizing a term to explaining how it fits the larger system. Mapping and recall work well together, because you rebuild the structure from memory and then check it against the generated version.

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Frequently asked questions

How do I break the nervous system into a useful mind map?

Start with the two large divisions, the central nervous system and the peripheral nervous system. Then add the brain, spinal cord, and nerves as second-level branches, and keep each sub-point to one function or structure.

How many branches should a nervous system mind map have?

Four to six main branches is a good target for one chapter, because it is enough to cover the major divisions without crowding the page. If a branch grows past six or seven sub-points, split it into its own map.

Can I export my mind map and study materials?

Exporting to PDF, DOCX, Anki, or CSV is a Plus feature. The free plan lets you generate and study in the browser, with three generations per month.

Is there a free plan to try this?

Yes. The free plan includes three generations per month and browser study, and you do not need a credit card to start. Students with a school email get 40 percent off paid plans.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.