
Simio
MATLAB
Autodesk Fusion 360
Wolfram Mathematica
SimScale
HyperWorks
AnyLogic
SimEvents
Multisim
LTspice
QUCS
EasyEDA
Proteus PCB design
KiCad
Pspice
Altium Designer
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
Autodesk Fusion 360 - Integrated CAD, CAM, and CAE featuring collaborative editing and cloud-based computation.
QUCS - Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.
EasyEDA - EasyEDA - Web-based EDA suite; runs in browser.