Fritzing - Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to...
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
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
Solve Elec - Solve Elec is a free educational program to draw and analyze electrical circuits.
PixiJS - Fast and flexible WebGL-based HTML5 game and app development library.
Oregano - oregano - An electrical engineering tool for GNOME