LTspice Overview
LTspice is a free, high-performance SPICE circuit simulator with schematic capture and a waveform viewer, from Analog Devices (originally Linear Technology), for Windows and macOS. It is one of the most widely used analog simulation tools in the industry and is especially strong for simulating switching power supplies and other analog circuits, with enhancements that make those simulations run quickly. You draw a circuit in the schematic editor, run a simulation, and inspect voltages, currents, and power in the built-in waveform viewer, with support for transient, AC, noise, and other analysis types. LTspice ships with an extensive library of Analog Devices components and standard parts, and the community has produced many additional models. Despite being free, it places no artificial limits on circuit size, which has made it a favorite of students, hobbyists, and professional engineers alike. The full offline installer holds the complete application, so it sets up on a machine with no internet connection. This page links to the official LTspice download.
