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Turn your notes on any topic into a mind map

Upload a PDF, document, slides, plain notes, or a photo of a page. DeckOwl builds a mind map of the main branches and sub-points so you can see how the ideas connect.

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How to find mind map ideas for a topic

Good mind map ideas start with the material you already have. A lecture handout or textbook chapter already contains the main concepts and the details that hang off them, so the job is to sort them into a structure you can see at a glance.

Put the broadest term from your material in the center.
Use five to seven main branches for most topics.
Keep sub-points to short phrases of three to five words.
Review the map from the center outward to test your recall.

Example photosynthesis mind map branches

Light-dependent reactionsOccur in thylakoid membranes · Use light energy to split water · Produce ATP and NADPH · Release oxygen

Calvin cycleTakes place in the stroma · Fixes carbon dioxide into sugar · Uses ATP and NADPH from the light reactions

Chloroplast structureDouble membrane envelope · Thylakoids stacked as grana · Stroma surrounds the thylakoids

Limiting factorsLight intensity · Carbon dioxide concentration · Temperature

Overall equationCarbon dioxide plus water · Light energy drives the reaction · Produces glucose and oxygen

Generate the full set

Main branches from your material

The generator pulls the central themes from your own text, so each branch reflects what your course actually covers.

Editable and explorable

Rename branches, move nodes, and expand the sections you want to study more closely.

Start from any file type

Works with PDF, DOCX, PPTX, plain text, and images of pages read with text recognition.

How it works

Add your material

Upload a PDF, DOCX, PPTX, or paste your notes. You can also upload a photo of a page.

Generate the map

DeckOwl proposes a central idea, main branches, and sub-points based on the content.

Edit and study

Adjust the layout, then explore the map or turn the same material into flashcards or a quiz.

A useful map has one central idea, five to seven main branches, and a few short sub-points under each branch. Keep the wording brief so the map stays readable when you review it later.

Because the map is built from your own files, it matches your course rather than a generic template. You can edit any branch that does not fit, and expand the parts you find difficult.

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Frequently asked questions

How many branches should a mind map for photosynthesis have?

Most topics work well with five to seven main branches, each with three to five sub-points. Fewer branches keep the map readable, and sub-points should be short phrases rather than full sentences.

How do I pick a central idea for a mind map?

Choose the broadest term your material is organized around, such as a chapter title or a unit's main concept. Place it in the center and let the subtopics radiate outward from it.

Can I edit the mind map after it is generated?

Yes. You can rename branches, move nodes, and expand the sections you want to study more closely. Your changes stay in the map so you can build on it over time.

Do I need to pay to export my study material?

The free plan lets you study in the browser with three generations per month, but exports are a paid feature. PDF, DOCX, Anki, and CSV exports are included in Plus at $39/year or $7.99/month.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.