JModelica is described as 'extensible Modelica-based open-source platform for optimization, simulation, and analysis of complex dynamic systems'. There are nine alternatives to JModelica for Windows, Linux, Mac, Online / Web-based and Chrome OS. The best alternative is OpenModelica, which is both free and Open Source. Other great apps like JModelica are Simulink (Paid), Altair Activate (Free), SimulationX (Freemium) and Dymola (Paid).
Altair Activate software is an open & flexible tool for rapidly modeling and simulating products as multi-disciplinary systems in the form of 1D models (expressed as signal-based or physical block diagrams), optionally coupled to 3D models.
Multi-Engineering Modeling and Simulation The unique multi-engineering capabilities of Dymola presents new and revolutionary solutions for modeling and simulation as it is possible to simulate the dynamic behavior and complex interactions between systems of many engineering...
Scicos is a graphical dynamical system modeler and simulator developed in the Metalau project at INRIA, Paris-Rocquencourt center. With Scicos, user can create block diagrams to model and simulate the dynamics of hybrid dynamical systems and compile models into executable code.
20-sim is commercial modeling and simulation program for multidomain dynamic systems, which is developed by Controllab. With 20-sim models can be entered as equations, block diagrams, bond graphs and physical components.
StochSD (Stochastic System Dynamics) is a System Dynamics simulation software with focus on stochastics. It is a form of Continuous System Simulation (CSS) that in addition to model and simulate continuous flows between compartments, can handle transitions of discrete entities.