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MaSSHandra 2.3.1. Desktop Edition.
MaSSHandra 2.3.1 for Windows MaSSHandra 2.3.1 for Mac MaSSHandra 2.3.1 for Linux
The Free 3D Network Diagramming Tool.
Please, note that the desktop versions are discontinued. I will not continue developing them.
All efforts will be placed on developing the web application.
If you don't agree with this decision, let me know and if there is enough people, I'll change my mind :)