Free Schematic Software. It supports pcb layout programs with several netlist formats and can also produce spice simulation netlists. It is free and open source software which runs on windows mac os x and linux.
Inkscape free electrical schematic diagram software. It has a schematic shot for multi page design multi layer support for the layout of the printed circuit board and a large selection of details. It is free and open source software which runs on windows mac os x and linux.
Welcome to the scheme it free online schematic and diagramming tool digikey electronics scheme it project.
It supports pcb layout programs with several netlist formats and can also produce spice simulation netlists. Digital logic design is a free standalone software to design digital circuits. Kicad is a cross platform and open source electronics design automation suite. It supports pcb layout programs with several netlist formats and can also produce spice simulation netlists.