LTspice

LTspice
Original authorMike Engelhardt
DevelopersLinear Technology, Analog Devices
ReleaseOctober 1999 (1999-10)
Stable release
26.0.2 / July 25, 2026 (2026-07-25)
Operating systemWindows 7, 8, 8.1, 10, 11, macOS 10.15+
PlatformIA-32, x86-64
SizeWindows (174 MB), MacOS (378 MB)
Available inEnglish
TypeElectronic design automation
LicenseFreeware
WebsiteLTspice webpage

LTspice is a SPICE-based analog electronic circuit simulator computer software, produced by semiconductor manufacturer Analog Devices (originally by Linear Technology). It is the most widely distributed and used SPICE software in the industry. Though it is freeware, it is not artificially restricted to limit its abilities (no limits on: features, nodes, components, subcircuits). It ships with a library of SPICE models from Analog Devices, Linear Technology, Maxim Integrated, and third-party sources.