What is your favorite schematic drawing software? - Solar Personally I have been using CorelDraw, probably not an industry standard in electrics. Great for schematics and wiring diagrams. Designed emergency systems for the London Underground with it. you can also export in other formats like EPS and DXF. Wiring Diagram Software - Draw Wiring Diagrams with Built A good wiring diagram has to communicate information quickly, clearly, and with low chance of misunderstanding. Fast and Simple Wiring Diagram Software. Lots of evidences have proven Edraw to be a super user-friendly wiring diagram software. First, you start with more than 1000 elegant and standardized wiring diagram symbols.