Drawing Electric Circuits Software. To draw circuit schematics and create the layout, the best free software that I have used is called DesignSpark from RS components. Some are electric circuit simulator, some are electronic circuit simulator, some spice circuit simulator, and some power electronic circuit simulator.
DesignSpark also lets you integrate LTSpice to run simulations on your schematic design that you are laying out. Pencil and paper for doing an initial drawing. pst-circ is a PSTricks package to draw electric and electronic circuits. CAD tools for drawing circuit schematics and PCB designs.
It can be used either with TeX or LaTeX.
Design circuits online in your browser or using the desktop application.
Well there are some standard SmartDraw – Free software for drawing electronics schematics. Pros: The output design is easier to Designing circuit is bit tougher than other simulators. Very useful and easy to learn.