List of free electronics circuit simulators information
List of free analog and digital electronic circuit simulators, available for Windows, macOS, Linux, and comparing against UC Berkeley SPICE. The following table is split into two groups based on whether it has a graphical visual interface or not. The later requires a separate program to provide that feature, such as Qucs-S,[1] Oregano,[2] or a schematic design application that supports external simulators, such as KiCad or gEDA.
Simulator name
Business / Developer
Latest release year
Currently developed?
Source Code?
O/S platforms
Analog?
Digital?
Digital languages?
Visual editor?
Notes
KTechLab[3]
n/a
2020
Linux
Simulates a PIC microcontroller
Logisim-evolution[4][5]
Multiple Universities
2023 (HC)
Windows, macOS, Linux
VHDL
Fork of Logisim (whose development ended in 2011)[6]
LTspice
Analog Devices
2024
Windows, macOS, POL
Very popular, updated often.[7] Originally created at Linear Technology.
Micro-Cap
Spectrum Software
2021
Windows
PLD expressions
End-of-life, no longer updated. Previously was commercial software.
QSPICE[8]
Qorvo
2024
Windows
Verilog
Integrated support for digital blocks, C++, Verilog. Same author as LTspice.
Qucs
n/a
2017
Maybe
Windows, macOS, Linux
VHDL, Verilog (only pure digital simulations)[9]
Qt GUI. Uses own SPICE-incompatible simulator Qucsator for analog.
Qucs-S[1]
various contributors
2024
Fork of Qucs that supports SPICE-compatible simulator backends: Ngspice, Xyce, SpiceOpus, Qucsator.
End-of-life, no longer updated. Historically important, because many analog simulators are based on this project.
Xyce[16]
Sandia National Laboratories
2023
Windows, macOS, Linux
*
*
Backend simulator that supports parallel simulation on Linux and macOS, and capable of solving extremely large circuits.
Table notes
Xyce - limited experimental support for Verilog and VHDL.[17]
^ abQucs-S.
^Oregano v0.84.43 Release.
^KTechLab v0.50.0 Release.
^Logisim-evolution (Holy Cross Edition); College of the Holy Cross.
^Logisim-evolution; Swiss Universities.
^Logisim; Dr. Carl Burch.
^"LTspice - Change Log". Analog Devices. Archived from the original on April 19, 2021.
^QSPICE Simulator; Qorvo.
^Kuznetsov, Vadim (2023-08-16). "Qucs-S: Getting started analog simulation with Ngspice backend" (PDF). pp. 10–11. Archived (PDF) from the original on 2023-08-28. Retrieved 2023-08-28.
^TINA-TI; Texas Instruments.
^PSPICE-FOR-TI; Texas Instruments.
^Getting started with the new PSpice for TI design and simulation tool; Texas Instruments.
^http://gnucap.org
^Tools that use ngspice as simulator; Ngspice.
^SPICE 3f.5 Release; UC Berkeley.
^"Sandia National Laboratories: Xyce Parallel Electronic Simulator (Xyce)".
^Sholander, Richard L. Schiek, Peter; Schiek, Richard (2020). "Application Note: Mixed Signal Simulation with Xyce™ 7.1" (PDF). xyce.sandia.gov. Archived (PDF) from the original on 2022-05-08. Retrieved 2023-08-27.
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