DWSIM - DWSIM is an open-source CAPE-OPEN compliant chemical process simulator for Windows and Linux.
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
CHEMCAD - We equip chemical engineers with integrated and intuitive process simulation software to tackle projects large and small. Discover how CHEMCAD can help you design, analyze and measure simple and complex processes like never before.
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.