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Make a mind map of any chapter from your own notes

Upload a PDF, DOCX, slides, or photos of textbook pages and get a mind map you can edit, rearrange, 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 · First set needs no signup · Creates mind maps in seconds

How to make a mind map of any chapter

Start with the chapter's headings: they make the best main branches for a mind map of any chapter. Sub-branches then hold the key terms, definitions, and examples under each heading.

Use the chapter's headings or learning objectives as main branches.
Keep each branch to one idea so you can recall it on its own.
Add short examples or formulas as leaves rather than full paragraphs.
Re-check the map against the chapter summary before an exam.

Example biology mind map: photosynthesis

Light-dependent reactionsOccur in thylakoid membranes · Split water and release oxygen · Produce ATP and NADPH

Calvin cycleTakes place in the stroma · Fixes carbon dioxide into 3-carbon sugars · Uses ATP and NADPH from the light reactions

ChlorophyllMain pigment that absorbs red and blue light · Reflects green light, which is why leaves look green · Sits in thylakoid membranes

Factors that limit the rateLight intensity · Carbon dioxide concentration · Temperature

Chloroplast structureDouble outer membrane · Stacks of thylakoids called grana · Stroma surrounds the thylakoids

Generate the full set

Starts from your material

Paste notes or upload the chapter file itself, so the map reflects what your course actually covers.

Editable branches

Rename, move, or delete any node and add your own connections until the map matches how you think about the material.

Explore at your own pace

Expand and collapse branches to drill into one idea at a time, then turn the same content into flashcards or a quiz.

How it works

Upload the chapter

Add a PDF, DOCX, PPTX, plain text, or clear photos of the pages. Images are read with text recognition.

Generate the map

DeckOwl pulls out the main ideas and arranges them into a central topic with linked branches.

Edit and explore

Reshape the map so each branch holds one idea, then study it by expanding branches from the center outward.

Doing this by hand works, but it takes time on long chapters. Uploading the chapter lets an AI draft the structure first, and you spend your effort checking that the branches match what your instructor emphasized.

Once the map is drafted, trim anything that repeats, merge overlapping branches, and make sure each leaf can be explained in one sentence. That final pass is where the map starts working as a study tool.

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Frequently asked questions

What should the main branches of a chapter mind map be?

Use the chapter's major headings or learning objectives as main branches. Add key terms, definitions, and examples as sub-branches under each one.

How many branches should a chapter mind map have?

Most chapters work well with four to seven main branches. If you have more, group related headings under a shared parent so the map stays easy to scan.

Can I export my mind map?

Exporting is a paid feature. The free plan lets you study in the browser, and Plus adds PDF, DOCX, Anki, and CSV export.

Is there a free plan?

Yes. The free plan includes 3 generations per month and browser study, and no credit card is needed to start.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.