Freeplane is a free, open source software application for creating mind maps (diagrams of connections between ideas), and electronic outlines. Written in Java, it is supported on Windows, Mac OS X and Linux, and is licensed under the GNU GPL version "2 or later".
In 2007, Freeplane was forked from the FreeMind project.[1] Freeplane maintains partial file format compatibility with FreeMind, fully supporting the FreeMind XML file format, but adds features and tags not supported by FreeMind, which FreeMind ignores on loading.
Features
Release 1.1
New features of Freeplane stable release (June 2010) include:
References to other mind maps from formulas and scripts
PDF and SVG exports enhancements
Java 9 support
JLatexMath update
Bug fixes
Release 1.7.x
Dark UI mode support (Look and feel and map template "Darcula")
User interface enhancements
Nodes and aliases enhancements
Java 13 support, Java 11 compatibility, Java 7 support dropped, Java 8 is required
Bug fixes
Release 1.10.x
The latest stable release is 1.11.14 (May 14, 2024; 6 months ago (2024-05-14)) [±].
Add-ons
One feature of Freeplane is the support for installable enhancements. Add-ons are a way to extend and customize Freeplane similar to how plug-ins and extensions can be used to extend and customize well-known applications like Firefox or LibreOffice. Freeplane add-ons can be used to provide a single function, a bundle of multiple functions, bind those functions to a menu item, etc.