Circuit Simulator Applet is described as 'This java applet is an electronic circuit simulator. 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 voltage' and is a circuit simulator in the education & reference category. There are more than 10 alternatives to Circuit Simulator Applet, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Android apps. The best Circuit Simulator Applet alternative is Circuit JS, which is both free and Open Source. Other great sites and apps similar to Circuit Simulator Applet are CircuitJS1 Desktop Mod, Xcos, Simulink and Everycircuit.