Digital Circuits Design and Simulation
Community driven PCB Layout and Schematic capture software
GeckoCIRCUITS is THE circuit simulator for modeling power electronics
Linux for Arduino and Makers developers
The Future of the Java Circuit Simulator
Simulador Educacional de Circuitos Digitales
A quantum circuit simulator written in Scala
An easy-to-use Simulation of Hardware-Gates
Visually build and simulate boolean logic circuits
Electronics Design Software