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,Qucs-S. Oregano,Oregano v0.84.43 Release. or a schematic design application that supports external simulators, such as KiCad or gEDA.
Simulatorname Business or developer Latestreleaseyear Currentlydeveloped? Sourcecode? Operatingsystemplatforms Analog? Digital? Digitallanguages? Visualeditor? Notes KTechLabKTechLab v0.50.0 Release. n/a 2020 Linux Simulates a PIC microcontroller Multiple universities 2025 Windows, macOS, Linux VHDL Fork of Logisim (development ended in 2011)Logisim; Carl Burch. LTspice Analog Devices 2026 Windows, macOS, POL Very popular, updated often Originally created at Linear Technology. Micro-Cap Spectrum Software Windows PLD expressions End-of-life, no longer updated; was commercial software QSPICEQSPICE Simulator; Qorvo. Qorvo 2026 Windows Verilog Integrated support for digital blocks, C++, Verilog; author same as LTspice Qucs n/a Windows, macOS, Linux VHDL, Verilog (only pure digital simulations) Qt GUI; uses own SPICE-incompatible simulator Qucsator for analog Qucs-S various contributors 2025 Windows, Linux,macOS Fork of Qucs that supports SPICE-compatible simulator backends: Ngspice, Xyce, SpiceOpus, Qucsator InfineonSpiceInfineonSpice. 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–TITINA-TI; Texas Instruments. DesignSoft & TI 2018 Windows, Wine Special version of TINA licensed to TI PSPICE-FOR-TIPSPICE-FOR-TI; Texas Instruments. Cadence & TI 2023 Windows Special version of PSpice licensed to TIGetting started with the new PSpice for TI design and simulation tool; Texas Instruments. Gnucaphttp://gnucap.org n/a Linux SPICE, Verilog, Spectre netlists; plug-ins Ngspice n/a 2025 Windows, macOS, Linux Backend simulator for Altium Designer, Eagle, KiCad, Qucs-STools that use ngspice as simulator; Ngspice. SPICESPICE 3f.5 Release; UC Berkeley. UC Berkeley Source-only End-of-life, no longer updated; historically important, because many analog simulators are based on this project Xyce Sandia National Laboratories 2025 Windows, macOS, Linux Backend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
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 List of free and open-source EDA software
References