Circuit Magic is an electrical circuits simulation program.
University of Colorado
Build circuits with resistors, light bulbs, batteries, and switches.
the Qucs team
Quite Universal Circuit Simulator is an integrated circuit simulator.
Gives you the peace of mind and overall view you need each day.
McCAD Schematics is a sophisticated engineering database management system.
Create schematic diagrams, circuits, and wiring diagrams.
EasyValve allows you to proficiently create your hydraulic circuit schematic.
CometCAD is circuit schematic and layout editor program.
KiCad Developers Team
You can create schematic diagrams or printed circuit board with up to 16 layers.
sPlan is a software to design your schematic circuit diagrams easy and fast.
The Proteus combines schematic capture, SPICE circuit simulation, and PCB design.
It consists of integrated schematic and printed circuit layout editors.
Schematic drawing tool targeted at producing nice publishable schematic captures.
Richard P. Andresen
Use analog circuit simulation for the professional circuit designer.
Air circuit breakers can be used both as circuit-breakers for general protection.
Mouse Tutor - Turn any mouse into a one button mouse!