List of free electronics circuit simulators

! Simulator
name !! Business or developer !! Latest
release
year !! Currently
developed? !! Source
code? !! Operating
system
platforms !! Analog? !! Digital? !! Digital
languages? !! Visual
editor? !! Notes

| n/a

| 2020

| {{ya}}

| {{ya}}

| Linux

| {{ya}}

| {{ya}}

| {{na}}

| {{ya}}

| Simulates a PIC microcontroller

| Multiple Universities

| 2024

| {{ya}}

| {{ya}}

| Windows, macOS, Linux

| {{na}}

| {{ya}}

| VHDL

| {{ya}}

| Fork of Logisim (development ended in 2011)[http://www.cburch.com/logisim/ Logisim; Carl Burch.]

| Analog Devices

| 2024

| {{ya}}

| {{na}}

| Windows, macOS, POL

| {{ya}}

| {{na}}

| {{na}}

| {{ya}}

| Very popular, updated often{{cite web |title=LTspice - Change Log |url=http://LTspice.linear.com/fieldsyncXVII/Changelog.txt.gz |website=Analog Devices |archiveurl=https://web.archive.org/web/20210419153707/https://ltspice.linear.com/fieldsyncXVII/Changelog.txt.gz |archivedate=April 19, 2021 |url-status=live}} Originally created at Linear Technology.

| Spectrum Software

| {{Dropped|2021}}

| {{na}}

| {{na}}

| Windows

| {{ya}}

| {{ya}}

| PLD expressions

| {{ya}}

| End-of-life, no longer updated; was commercial software

| Qorvo

| 2025

| {{ya}}

| {{na}}

| Windows

| {{ya}}

| {{ya}}

| Verilog

| {{ya}}

| Integrated support for digital blocks, C++, Verilog; author same as LTspice

| n/a

| {{Dropped|2017}}

| {{unknown|?}}

| {{ya}}

| Windows, macOS, Linux

| {{ya}}

| {{ya}}

| rowspan="2" | VHDL, Verilog (only pure digital simulations){{Cite web |last1=Kuznetsov |first1=Vadim |date=2023-08-16 |title=Qucs-S: Getting started analog simulation with Ngspice backend |url=https://ra3xdh.github.io/pdf/qucs_s_tutorial.pdf |url-status=live |archive-url=https://web.archive.org/web/20230828061036/https://ra3xdh.github.io/pdf/qucs_s_tutorial.pdf |archive-date=2023-08-28 |access-date=2023-08-28 |pages=10–11}}

| {{ya}}

| Qt GUI; uses own SPICE-incompatible simulator Qucsator for analog

| Infineon Technologies

| 2024

| {{ya}}

| {{na}}

| Windows, Wine

| {{ya}}

| {{na}}

| {{na}}

| {{ya}}

| Analog SPICE Simulation

| University of Florence

| 2019

| {{unknown|?}}

| {{na}}

| Windows

| {{ya}}

| {{na}}

| {{na}}

| {{ya}}

| A serial number is sent to email to activate

| DesignSoft & TI

| 2018

| {{ya}}

| {{na}}

| Windows, Wine

| {{ya}}

| {{na}}

| {{na}}

| {{ya}}

| Special version of TINA licensed to TI

| Cadence & TI

| 2023

| {{ya}}

| {{na}}

| Windows

| {{ya}}

| {{na}}

| {{na}}

| {{ya}}

| Special version of PSpice licensed to TI[https://www.ti.com/lit/pdf/SLYP725 Getting started with the new PSpice for TI design and simulation tool; Texas Instruments.]

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| n/a

| {{Dropped|2006}}

| {{unknown|?}}

| {{ya}}

| Linux

| {{ya}}

| {{na}}

| {{na}}

| {{na}}

| SPICE, Verilog, Spectre netlists; plug-ins

| n/a

| 2024

| {{ya}}

| {{ya}}

| Windows, macOS, Linux

| {{ya}}

| {{ya}}

| {{na}}

| {{na}}

| Backend simulator for Altium Designer, Eagle, KiCad, Qucs-S[http://ngspice.sourceforge.net/resources.html Tools that use ngspice as simulator; Ngspice.]

| UC Berkeley

| {{Dropped|1993}}

| {{na}}

| {{ya}}

| Source-only

| {{ya}}

| {{na}}

| {{na}}

| {{na}}

| End-of-life, no longer updated; historically important, because many analog simulators are based on this project

| Sandia National Laboratories

| 2023

| {{ya}}

| {{ya}}

| Windows, macOS, Linux

| {{ya}}

| {{maybe|*}}

| {{maybe|*}}

| {{na}}

| Backend simulator, supports parallel simulation on Linux and macOS, can solve huge circuits