This site allows you to run ngspice simulations from a web browser environment. Whether you are using a Windows, Linux, or Mac computer, a smart phone, or a tablet, you always should be able to run a SPICE simulation! For more information about SPICE see the following links:
Check out the Example Circuits and the FAQ to get started.
Visit the Blog and Forums for more information.
Read the Documentation or see additional SPICE related Links