The best open source alternative to MindMeister is LibreOffice - Draw. If that doesn't suit you, our users have ranked more than 100 alternatives to MindMeister and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to MindMeister are FreeMind, Freeplane, DeepNotes and PlantUML.
Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of 300cm by 300cm, Draw is a an excellent package for producing technical drawings, general posters, and much else.
Free and open source, Java-based mind-mapping app for the desktop featuring a hierarchical editor that emphasizes folding.
Freeplane is a powerful and free software for building mind maps. It is a redesigned version of the well known FreeMind , and is created by one of FreeMind's key developers.
DeepNotes is an open source, end-to-end encrypted visual note-taking app with deep page navigation and live collaboration. Create mind maps, diagrams, kanban boards, among others. Infinite nesting of infinite canvases.
PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams. The generator can be run anywhere within JVM and integrated with various application such as wiki, text editor, IDE, programming language, documentation generator, and others.
Efficient web-based tool for constructing high-quality commutative diagrams. Offers LaTeX export with embedded links, intuitive interface supporting both mouse and keyboard inputs, and features like multiple selections, macro support, and smart label alignment.
Visual Understanding Environment (VUE) is a mind-mapping and concept-mapping tool. It is also a non-linear presentation program.
VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts. Such maps can help you to improve your creativity and effectivity. You can use them for time management, to organize tasks, to get an overview over complex contexts, to sort your ideas etc.
TiddlyMap is a TiddlyWiki plugin that turns your favourite personal note taking software in a wiki-concept-map hybrid! Yes, you will be able to do both: drawing maps and putting down knowledge in a wiki way.
What is Minder? Minder is a mind-mapping application with many features that make it ideal for capturing, organizing and visualizing your ideas. Minder has automatic node layout features.
Wise Mapping is the web mind mapping tool that leverages the power of Mind Maps HTML5 and SVG. Users will be able to create and read their mind maps from everywhere whenever its needed. Once you have your mind map created the features that distinguish WiseMapping appears: Embed...
Create deep visual documents, adaptable and multi-level diagrams, flowcharts, concept maps, mind maps and models.
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Strong emphasis on folding nodes makes it the best mind mapping software for note taking and learning.