Compare software

TheBrain vs Project Graph: catalog facts
TheBrain	Project Graph
Free The desktop app is free according to the developer's site.	Free Free download; the project accepts sponsorship.
Windows, macOS, Linux	Windows
Ideas can link to many contexts without duplication Long-developed product with a large user base	Many node types including LaTeX, images and SVG Keyboard-driven tree building with automatic layout
Network-style interface takes time to learn Not open source	Website and documentation are mainly in Chinese Licence terms are not clearly stated in the research
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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