Fritzing - Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to...
3D Ripper DX - With 3D Ripper DX you can:
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
DeleD CE - DeleD is a 3D modeler and level-editor combined into one.
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
Sunny 3D - With ultimate simple user interface, you can create 3D model by using freehand sketch and directly...