List of free electronics circuit simulators
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 latter 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 or developer | Latest release year |
Currently developed? |
Source code? |
Operating system platforms |
Analog? | Digital? | Digital languages? |
Visual editor? |
Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| KTechLab[3] | n/a | 2020 | Linux | Simulates a PIC microcontroller | ||||||
| Logisim-evolution[4][5] | Multiple universities | 2025 | Windows, macOS, Linux | VHDL | Fork of Logisim (development ended in 2011)[6] | |||||
| LTspice | Analog Devices | 2026 | 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| Micro-Cap | Spectrum Software | 2021 | Windows | PLD expressions | End-of-life, no longer updated; was commercial software | |||||
| QSPICE[8] | Qorvo | 2026 | Windows | Verilog | Integrated support for digital blocks, C++, Verilog; author same as LTspice | |||||
| Qucs | n/a | 2017 | ? | 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 | 2025 | Windows, Linux, macOS |
Fork of Qucs that supports SPICE-compatible simulator backends: Ngspice, Xyce, SpiceOpus, Qucsator | ||||||
| InfineonSpice[10] | Infineon Technologies | 2024 | Windows, Wine | Analog SPICE Simulation | ||||||
| SapWin | University of Florence | 2019 | ? | Windows | A serial number is sent to email to activate | |||||
| Tinkercad Circuits | Autodesk | 2013 | Web-based | Arduino (via block or text code) | Beginner-friendly; simulates Arduino and basic electronics | |||||
| TINA–TI[11] | DesignSoft & TI | 2018 | Windows, Wine | Special version of TINA licensed to TI | ||||||
| PSPICE-FOR-TI[12] | Cadence & TI | 2023 | Windows | Special version of PSpice licensed to TI[13] | ||||||
| Gnucap[14] | n/a | 2006 | ? | Linux | SPICE, Verilog, Spectre netlists; plug-ins | |||||
| Ngspice[15][16] | n/a | 2025 | Windows, macOS, Linux | * | Backend simulator for Altium Designer, Eagle, KiCad, Qucs-S[17] | |||||
| SPICE[18] | UC Berkeley | 1993 | Source-only | End-of-life, no longer updated; historically important, because many analog simulators are based on this project | ||||||
| Xyce[19] | Sandia National Laboratories | 2025 | Windows, macOS, Linux | * | * | Backend simulator, supports parallel simulation on Linux and macOS, can solve huge circuits |
- Table notes
- ngspice - loads Verilog digital code compiled by Verilator or Icarus Verilog or VHDL compiled by GHDL for mixed signal simulation
- Xyce - limited experimental support for Verilog and VHDL[20]
See also
- List of HDL simulators for VHDL, Verilog, SystemVerilog, ...
- Espresso heuristic logic minimizer, such as Logic Friday
- Electronic kit
- Comparison of EDA software
- List of instruction set simulators
- List of electrical engineering software
References
- ^ a b Qucs-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; 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.
- ^ InfineonSpice.
- ^ 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
- ^ "ngspice".
- ^ "ngspice".
- ^ Tools that use ngspice as simulator; Ngspice.
- ^ SPICE 3f.5 Release; UC Berkeley.
- ^ "Sandia National Laboratories: Xyce Parallel Electronic Simulator (Xyce)".
- ^ Sholander, Peter; Schiek, Richard L. (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.