Freeplane is a free, open-source mind mapping and knowledge management application that evolved from FreeMind. Available for Windows, macOS, and Linux, Freeplane offers powerful features for organizing ideas, taking notes, and planning projects.
The hierarchical map structure organizes information with a central topic and branching subtopics. Unlimited nesting levels accommodate complex subjects. Folding collapses branches to manage complexity. Free positioning allows nodes outside the standard tree layout.
Rich content support includes formatted text, hyperlinks, images, and LaTeX formulas. Notes attach detailed information without cluttering the map view. Attributes store structured data within nodes. Icons visually categorize and mark nodes.
Conditional formatting applies styles based on node content, attributes, or position. Style templates define consistent appearance across maps. Automatic edge coloring distinguishes branches visually. CSS-like style sheets provide detailed control.
Calculation features evaluate formulas referencing node content and attributes. Summaries aggregate information from child nodes. Time management tracks task duration and schedules. Calendar integration connects to external calendars.
Export formats include PDF, HTML, markdown, and various mind map formats. Presentations display maps section by section for meeting use. Search finds content across all nodes including notes and attributes. Filter mode displays only matching nodes temporarily.