LTspice

Plans and prices

From LTspice's own pricing page, checked 5 Oct 2026. Every plan

What the maker publishes

Design tool exports

Signal Chain Designer, Analog Filter Wizard, Analog Photodiode Wizard, Precision ADC Driver Tool, and LTpowerCAD can export designs to LTspice for further simulation or verification. source

Features

The maker describes LTspice as fast, free, and unlimited, with enhancements and models for analog circuit simulation. source

Founded

1965 source

Headquarters

Wilmington, Massachusetts, USA source

Headquarters

Wilmington, Massachusetts, USA source

Intended audience

The maker presents LTspice as an engineering design tool and provides circuit simulation tutorials, demo circuits, and model libraries for designers. source

Learning resources

Analog Devices provides tutorials on schematic creation, transient and AC simulation, waveform viewing, transformers, third-party models, and noise analysis. source

Model library

The LTspice download includes macromodels for most Analog Devices switching regulators and amplifiers, plus a library of devices for general circuit simulation. source

Platforms

The download page lists Windows 10/11 x64, Windows 11 ARM64, and macOS; Windows XP and older macOS downloads are marked end of support. source

Purpose

LTspice is a SPICE simulator, schematic capture tool, and waveform viewer for analog circuit simulation. source

Simulation

Its graphical schematic interface lets users probe schematics, run simulations, and explore results in the built-in waveform viewer. source

Support

Users can ask questions, answer them, or comment about LTspice in the EngineerZone forum. source

Telemetry

An Analog Devices employee states in a verified forum answer that LTspice sends no data unless users opt in, in which case it sends anonymous telemetry to ADI; the choice can be changed in settings. source

Third-party models

LTspice supports importing third-party SPICE models implemented with .MODEL directives or .SUBCKT blocks. source