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CogniGuide

Open Source Mind Map Tools for Mac

A guide to free, open source mind mapping apps on macOS, plus an AI option that builds a map from your own PDF, notes or slides.

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CogniGuide at a glance

What you get
Interactive mind maps of the main ideas and how they connect. Free: overview maps (detailed maps on your first 3 creations). Plus: detailed maps with supporting concepts.
Exports
Your first PDF or PNG export is free; Plus exports anytime.
Price
Free plan: 5 creations a week, up to 3 a day. Plus: $9.99/month or $99.90/year (USD; local prices at checkout).
Sign-up
A free account is required before you create anything (Google or email). No credit card.
What you can upload
PDF, Word (.docx), PowerPoint (.pptx), plain text or Markdown, and images (PNG, JPG, WebP, GIF), or type a topic. One file per creation on the free plan; several at once on Plus.

How it compares: vs Knowt · vs Quizlet · vs NotebookLM · vs Mapify

Why Mac Users Choose Open Source Maps

Open source mind mapping software is free to use and can be inspected, changed and shared under its license.

Build from your own material

Upload a PDF, Word, PowerPoint or text file and get a mind map built from its content.

Expandable branches

Open any node to see subtopics, then expand it further with AI as you study.

Study next steps

Turn the same map into a quiz, flashcards, or a PNG or PDF to share.

How to Make a Mind Map on Mac

Start from your notes or a topic, then refine the map in your browser.

  1. 1

    Add your material

    Upload a file from your Mac or type a topic to begin.

  2. 2

    AI builds the map

    The generator organizes the content into a branching map with main ideas and details.

  3. 3

    Study and export

    Expand nodes, edit text, take a quiz, then export a PNG or PDF.

Open Source Mind Mapping on macOS

Open source mind map Mac software is free to download and modify, and it runs natively on macOS. Common options include Freeplane, a Java-based editor, and Freemind, an older open source tool. Both let you build branching maps by hand, with nodes, links and icons. Their strengths are offline use and full control over the file format.

  • Freeplane: open source, GPL licensed, supports scripting and rich nodes
  • FreeMind: older GPL editor, simple and lightweight interface
  • Manual building: you create every node and connection yourself
  • File formats: most open tools save .mm files for easy sharing
  • Offline use: desktop apps work without an internet connection

Once you know the basics, you can use the map to revise, plan essays or organize projects. For a map built from your own documents in a few seconds, CogniGuide can generate one from your files.

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Open Source Mind Map Mac FAQ

Common questions about free mind mapping on macOS.

Which open source mind map app works on Mac?

Freeplane and FreeMind are two well-known open source editors that run on macOS. Both are Java-based and require installing a Java runtime. Check each project's website for the current version and install steps.

Is there a free mind map app for Mac that is not open source?

Yes. Several free tiers exist, but they may limit features or export options. Compare their terms before choosing, especially if you need offline use or file ownership.

Can I create a mind map from my PDF on Mac?

CogniGuide accepts PDF, Word, PowerPoint, text, Markdown and image files, and builds an interactive mind map from them. You can expand nodes with AI and export the result.

Is CogniGuide free to use?

The free plan allows 5 creations a week with no payment needed. Paid plans raise these limits. You can also turn a finished map into a quiz to test yourself.