VeroRoute - Cross-platform software for producing Veroboard (stripboard), Perfboard, and single-sided PCB...
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
Virtual Breadboard - It is a circuit simulator on a virtual breadboard.
Solve Elec - Solve Elec is a free educational program to draw and analyze electrical circuits.
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
Oregano - oregano - An electrical engineering tool for GNOME