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Convert your PDF into a mind map you can explore and edit

Upload lecture slides, textbook chapters or notes and get a mind map of the main ideas, with branches you can edit and expand.

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

Why turning a PDF into a mind map helps

Long PDFs often hide the structure of a topic under pages of detail. When you convert a PDF to a mind map, the main ideas move to the center and supporting details hang off them, so you can see how a chapter fits together before you memorize it.

  • Spot the main topics of a chapter at a glance.
  • See how subtopics relate to the central idea.
  • Edit branches to match your lecture notes.
  • Review one branch at a time instead of rereading the whole PDF.
Example cell biology mind map branches
Cell membranePhospholipid bilayer · Selective permeability · Passive and active transport
MitochondriaSite of cellular respiration · Produces ATP · Contains its own DNA
NucleusHolds DNA · Controls gene expression · Contains the nucleolus, which makes ribosomal RNA
Endoplasmic reticulumRough ER has attached ribosomes · Smooth ER makes lipids · Smooth ER detoxifies drugs in liver cells
RibosomesBuild proteins from mRNA · Found free or attached to ER · Made of rRNA and protein
Generate the full set

Branches from your own material

The map is built from the text of your PDF, so the branches reflect what your course actually covers.

Editable and explorable

Rename, move or add nodes, then click through branches to focus on one topic at a time.

Works with more than PDFs

Start from DOCX, PPTX, plain text notes, or a photo of a page read with text recognition.

How it works

Upload your file

Add a PDF, or paste in your notes. No credit card is needed to start.

Generate the map

DeckOwl reads the material and organizes the main topics into a branching mind map.

Edit and explore

Adjust the branches to match your lecture, then move through the map to review each topic.

A map also gives you a study path. Start with the central concept, test yourself on each branch, and expand only the parts you are unsure about. Because the map is editable, you can reshape it to match your professor's emphasis instead of the textbook's order.

Explore related topics

Frequently asked questions

How do I pick the main branches when studying a long PDF?

Start with the headings and any bolded or repeated terms, since those usually mark the main topics. Keep each branch to one idea and move supporting facts one level down.

How many levels should a study mind map have?

Three levels is usually enough: a central topic, main branches, and short sub-points. Deeper levels can make a map hard to review quickly.

Is there a free plan for converting PDFs to mind maps?

Yes. The free plan includes 3 generations per month and lets you study in the browser. Exports are available on paid plans.

Do I need a paid plan to export my study materials?

Yes. PDF, DOCX, Anki and CSV export are included with Plus, which also removes the generation limit.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.