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Turn PDFs and notes into a free mind map on your Mac

Upload a PDF, DOCX, slide deck, or typed notes and get an editable, explorable mind map. It runs in your Mac's browser, and the free plan includes 3 generations a month with no credit card needed.

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 free mind map tool helps you study on a Mac

A free mind map tool on a Mac is most useful when you already have a stack of lecture slides or reading and need to see how the ideas connect before a test. Instead of retyping outlines, you upload the file and get a map of the main topics and their sub-points.

Runs in the browser on your Mac, so there is nothing to install
Free plan includes 3 generations a month and study in the browser
Accepts PDFs, Word and PowerPoint files, plain notes, and photos of pages
Maps stay editable, so you can reshape them as you learn the material

Example cell biology mind map branches (biology topic)

OrganellesMitochondria · Ribosomes · Endoplasmic reticulum · Golgi apparatus

Cell membranePhospholipid bilayer · Embedded proteins · Selective permeability

Passive transportDiffusion · Osmosis · Facilitated diffusion

Cell divisionInterphase · Mitosis · Cytokinesis

Cellular respirationGlycolysis · Krebs cycle · Electron transport chain

Generate the full set

Works in your Mac browser

Open DeckOwl in Safari, Chrome, or Firefox on your Mac and study without installing anything extra.

Editable, explorable branches

Expand and collapse branches, rename nodes, and reorganize the map so it matches how you think about the material.

Starts from your own material

Feed in lecture slides, textbook PDFs, or photos of handwritten pages, and the map is built from what you actually need to learn.

How it works

Upload your notes

Add a PDF, DOCX, PPTX, plain text file, or a photo of a page. Photos are read with text recognition.

Generate the mind map

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

Edit and study it

Rearrange branches, add your own nodes, and use the map to quiz yourself on each section before an exam.

Because the map is editable, you can cut weak branches, merge overlapping ideas, and add details from class. Working through the map by hand is a good way to check what you actually understand, especially for topics with many linked terms like cell biology.

The free plan gives you 3 generations a month and lets you study in the browser. If you want to export your material to PDF, DOCX, Anki, or CSV, that is part of the Plus plan.

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Frequently asked questions

Is there a free mind map tool for Mac?

Yes. DeckOwl's free plan includes 3 mind map or study generations a month, and you can study them in your Mac's browser. No credit card is needed to start.

How many branches should a mind map for cell biology have?

Most cell biology maps work well with 4 to 6 main branches, such as organelles, membrane transport, and cellular respiration. Keep sub-points to 3 or 4 per branch so each one stays readable.

How do I turn lecture notes into a study mind map?

Start with the central topic from your lecture title, then group your notes into the main ideas the professor emphasized. Add the key terms under each idea, and check that every branch can be explained in your own words.

Do I have to pay to export my mind map?

Exporting is a paid feature. Plus is $39 a year or $7.99 a month and includes PDF, DOCX, Anki, and CSV export along with unlimited generations.

Generate free mind maps

Keep exploring the topic

Review the main ideas visually or practice recalling them.