FidoCADJ - FidoCadJ is a free user-friendly vector graphic editor for Mac OS X, Linux, Windows and Android.
Pspice - OrCAD PSpice technology provides the best, high-performance circuit simulation to analyze and refine your circuits, components, and parameters before committing to layout and fabrication
JumboCAD EDA - JumboCAD EDA contains 3 packages, Schematic Capture, PCB designer and Library Editor.
Circuit Simulator - Animated electronic circuit simulator using ideal components to visualize voltage and current.
XCircuit - XCircuit: Home Page
VeroRoute - Cross-platform software for producing Veroboard (stripboard), Perfboard, and single-sided PCB...