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A mind map app that turns your notes and PDFs into editable maps

DeckOwl reads your lecture slides, textbook PDFs, or photos of pages and builds a mind map you can reshape and explore, branch by branch.

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

What to look for in a mind map app

Choosing the best mind map app depends on what you start with. Most students have lecture slides, scanned textbook pages, or a messy page of notes, and a good tool should read all of them without making you retype anything.

  • Accepts your own files, including PDF, DOCX, PPTX, plain text, and photos of pages
  • Editable output, so you can reshape the map after it is generated
  • Explorable structure that lets you move between main branches and sub-points
  • A free plan to test the workflow on your own material before you upgrade
Example cell biology mind map branches
OrganellesNucleus · Mitochondria · Ribosomes · Endoplasmic reticulum
Cell membranePhospholipid bilayer · Selective permeability · Embedded proteins
Passive transportDiffusion · Osmosis · Facilitated diffusion
MitosisProphase · Metaphase · Anaphase · Telophase
Cellular respirationGlycolysis · Krebs cycle · Electron transport chain
Generate the full set

Starts from your own material

Upload PDF, DOCX, PPTX, plain text, or a photo of a page. Text recognition reads the pages so the map reflects your course, not a generic template.

Editable after generation

The map is a starting point. Rename branches, move ideas, and add your own points so the structure matches how your class organizes the topic.

Explorable structure

Move between main branches and sub-points to review one idea at a time, then turn the same material into flashcards or a quiz when you are ready.

How it works

Upload your notes or file

Drop in a PDF, slide deck, Word document, or a photo of your notes. No credit card is needed to start.

Generate the mind map

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

Edit and explore

Reshape the branches to fit your course, then study the map in the browser or export it on a paid plan.

DeckOwl generates an editable, explorable mind map from PDF, DOCX, and PPTX files, plain text, or photos of pages. You can rearrange branches and move between topics one at a time, which makes a map easier to review than a static picture.

Explore related topics

Frequently asked questions

How do I make a mind map for a biology unit?

Start with the unit topic in the center, then add major branches such as organelles, transport, and cell division. Keep each sub-point to a few words so the map stays easy to scan.

How many branches should a study mind map have?

Most topics work well with 4 to 7 main branches. If you need more, add a second level of sub-points instead of crowding the first level.

Can I export my mind map?

Exports are a paid feature. The Plus plan includes PDF and DOCX export, while the free plan lets you study in the browser.

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.