This is an interactive sim. It changes as you play with it.

CircuitLab provides online, in-browser tools for schematic capture and circuit simulation. These tools allow students, hobbyists, and professional engineers to design and analyze analog and …

Place and wire electronic components (even a lemon) to create a virtual circuit from scratch, or use our starter circuits to explore and try things out. No additional hardware required.

Real-time circuit simulation engine is custom-built for speed and interactivity. Easy one-click simulation, from simple resistors and logic gates, to complex transistor-level oscillators and …

Cirkit Designer IDE is an all-in-one circuit design tool that helps you create and share electronic circuits with ease.

When the applet starts up you will see an animated schematic of a simple LRC circuit. The green color indicates positive voltage. The gray color indicates ground. A red color indicates negative …

Circuit Diagram is a free application for making electronic circuit diagrams and exporting them as images. Design circuits online in your browser or using the desktop application.