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Freeplane vs TeamMapper: catalog facts
Freeplane	TeamMapper
Free Free and open source under the GPL.	Free Free and open source under the MIT licence.
Windows, macOS, Linux	Web, Self-hosted
Attributes, conditional styles, filtering and scripting go well beyond drawing a diagram Groovy scripting can generate or transform entire maps	Live collaboration with view or edit invites Export to Mermaid, SVG, PDF and PNG
A dense interface with a real learning curve Java Swing looks and feels out of place on every platform	Maps are deleted after 30 days by default Self-hosting needs a PostgreSQL database
Downloadable app	Web application, Self-hosted
Open source	Open source
License: GPL-2.0	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.