
ARIS Express
Modelio
Diagramo
UML Designer
Yakindu Statechart Tools
BOUML
IYOPRO
MagicDraw
FlexSim
AnyLogic
ns-3
Paessler Multi Server Simulator
IMUNES
NetSim
Cisco VIRL
Mininet
Modelio - Modelio is an open source modeling tool supporting natively UML, BPMN and model exchange with XMI.
AnyLogic - AnyLogic has changed simulation modeling and expanded its application into complex business environments. The unmatched flexibility of multimethod modeling allows users to capture the complexity of virtually any system, at any level of detail.
Diagramo - Diagramo is an online flowchart software - diagrams (create, edit and share)
ns-3 - a discrete-event network simulator for internet systems
UML Designer - UML Designer provides a set of common diagrams to work with UML 2.5 models.
Paessler Multi Server Simulator - Paessler Multi Server Simulator is inexpensive and robust software that helps you power massive-scale testing.