Best Free electronics Circuit Simulation Software

The free and/or open source electronic circuit simulation software on this page allow you to design, analyse and test a circuit virtually in a browser or on a computer. They simulate the behaviour of an electronic device/circuit, and are often used because it is cheaper, quicker and often more practical to simulate a circuit than to physically build one. The programs below may provide either analog or digital simulation capabilities or both, have a schematic editor, a waveform viewer, support resistors, capacitors, diodes, etc.
In the following, we explore a series of free online and computer software tools for circuit simulation.Online tools for circuit simulation.Here we are listing a couple of free online circuit simulators for you to try out.These circuit simulations are not needed to be downloaded in your computer, and they can work directly from the website.

Circuit Sims

It was one of the first open source web based circuit simulation software, It’s an excellent tool for both students and electronic enthusiasts. Its design is based on colors that can indicate for example positive or negative voltage, and allows you to build simple circuits with mouse clicks. Regrettably, the developer failed to make the leap in quality and increase the graphical user interface.circuitsim


It has visual and attractive graphics, but limited circuit simulation software. It ‘s definitely a great program for teaching, very easy to use. it makes you see the components as they are made. It does not allow you to design the circuit, but only to make practise.dcaclabEvery Circuit

It is an electronic simulation software online with a well-made graphics. When you enter the online program and it will ask you to create a free account so that you can save your projects and have a limited portion of the area to draw your circuit. To use it without limitations demanding an annual fee of $ 10. It can be downloaded and used on platforms of Android and iTunes. The components have a limited ability to simulate with spice minimum parameters. Very easy to use, it has a great system of electronic design. It allows you to include (embed) simulation into your web page.everycircuit


It is an electronics circuit simulation software. Although it leaves people the first impression of confusion about the website, it provides many examples about how the program works, see yourself on video “get started in five minutes.” The measurements of the parameters of the electronic circuit are displayed with realistic virtual instruments.docircuits


Electronic circuit simulation software PartSim is an electronic circuit simulator online. It’s good at spice simulation. You can draw electrical circuits and test it. It is still a new simulator so that there are few components to make simulations for choices.partsim

123D Circuits

An activity program developed by AutoDesk, allowing you to create the circuit, see it onthe breadboard , use the platform Arduino, simulate the electronic circuit and eventually create the PCB. The components are displayed in 3D in their real form. You can program the Arduino directly from this software simulation,( it is) really impressive.123d-circuits


This electronic circuit simulation program has sophisticated capabilities. It allows you to simulate, in addition to the normal mixed-signal circuits, microprocessors also, VHDL, SMPS power supplies and radio frequency circuits. The calculations for electronic simulation are performed directly on the companyserver and allow an excellent simulation speed.tinacloud

EasyEDA electrionic circuit design, circuit simulation and PCB design 

EasyEDA is an amazing free online circuit simulator which is very suitable for everyone who loves electronic circuit. EasyEDA approximates some LTspice IV, but with a somewhat more friendly interface. This simulator is also very powerful , which can verify analog, digital, and mixed signal circuits with spice subcircuits and models and get results quickly from the cloud-based servers. The software environment allows you to design schematic, check operation by circuit simulator. When you make sure the circuit function is good, you can create printed circuit boardwith the same software. On the website you can find and use many projects and electronic circuits made by others because they are public and open hardware.It’s free and also allows you to share your work with others.


Computer softwares for circuit simulation

A computer software offers different ways to manipulate and organize the electrical circuits including here the possibility to import files, share, and work with complex electronic scheme.In the following you have available a series of computer software tools to draw and simulate electronic circuits and diagrams.


a circuit simulation software with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Transient, Noise and Harmonic Balance analysis. Pure digital simulations are also supported. Qucs works on almost any operating systems such as Solaris, Apple Macintosh, Microsoft windows, FreeBSD, NetBSD etc. The program is released under the GNU General Public License in source code form, so you will need to compile it yourself before you can run it.

LT Spice Simulator

Electronics circuits simulation software is available from a mainstream analog chip company, Linear Technology, works on Windows, OS X. Although it is biased towards using their parts, it is flexible and can be used with other vendor’s parts.LTspice is much fast simulation of switching regulators with enhanced SPICE (compared to normal SPICE simulators).LTspice gives access to over 200 op amp models, transistor models, MOSFET models etc. A high disadvantage of LTspice is its proprietary code base which is licensed by Linear Technology. Had they made it open source, LTspice could have gone places with collaborative development.


This electronics circuit simulation software  is a mixed level, mixed signal circuit simulation engine, based on three open source software packages: Spice3f5, Cider1b1 and Xspice. Ngspice is part of gEDA project, a full GPL’d suite of Electronic Design Automation tools. It works on Linux andFreeBSD systems.

MultiSim National Instruments

Multisim electronics circuit simulation software is based on Berkeley SPICE and comes in both free and paid additions. MultiSim, the circuit maker software enables you to capture circuits, create layouts, analyse circuits and simulation. Highlight features include exploring breadboard in 3D before lab assignment submission, create printed circuit boards (PCB) etc. Breadboard simulation is possible with Multisim circuit simulator.It’s available in Microsoft Windows.


Prospice is a mixed mode, Spice based electronics circuit simulation tool from LabCenter. They have two versions, basic and advanced. Basic version is free which supports interactive simulation only while advanced supports a range of useful functions and features like graph based analysis which includes frequency, noise, distortion, fourier parameters etc.The software runs on the Windows operating system.


this student version electronics simulation software from CircuitLogix enables you to perform analog, digital and mixed mode circuit analysis and simulation. This SPICE simulation software provides 4000 devices on its student version which is 1/3 of the pro version. This circuit building software give access to switches, linear IC and digital IC, FET, Transistors, relays, displays, signal generators, SCR’s, opto isolators, photo diodes, semiconductors, motors etc. It works on Windows system.


this is developed as an extension to Spice 3 by Georgia Institute of Technology. It has code modelling feature which enables user to add new models. Its code model library includes functional blocks like multipliers, summers, integrators, magnetics models, limiters, S-domain transfer functions, digital gates, etc. The program is provided in source code form, and is released into the public domain.

17 thoughts on “Best Free electronics Circuit Simulation Software”

  1. Which of these simulation software packages would be best for designing a circuit which has both electronic components, and mechanical relays, and also a 3 position switch.

  2. sir
    which of these softwares will be suitable for the simulation and design of a transimpedance amplifier for a 3.5 watts solar panel

    • Good morning sir… I am a student of final year of my engineering at University of Solapur, I am working on this project named “Monthly Electricity Billing Display System using microcontroller 8051 with SMS feature”.On the internet I saw your profile and see that you can able to help us in this project. I want its source code ,if you help me I’ll be very thankful to you!

  3. among these soft wares, which one is favorable for a circuit involving agricultural sensors that operate on data stored in a database? i need help please

  4. In which simulator software I can find the IC version of Logic GATES? For example if I enter 7404 in most of the simulators, it only provides a single gate. But I need the whole IC.

  5. I am currently trying to simulate a huge circuit which involves parallel working of 2 PIC and an ATmega328p U. I can’t simulate it on Proteus because of an error ” Simulation can’t be done because of excessive CPU load ” , so can someone recommend me any other software simulator which can handle a big circuit ?

  6. Desperate to know why a circuit with just 1 fet give completely different output reading from a reality circuit with identical parts what am I doing wrong in micro 10

  7. These comments seem to fall into 2 catagories.
    1) I need help. I will not take the time to explain my actual problem. Nor will i put any effort whatsoever into solving my own problem. You should help me.

    2) Ah I see you have taken the time to look at many different tools to do circuit simulations! I also see that you have written a quite detailed description of each, and even compared them with each other. That must have taken a long time! Now, please further simplify this for my specific needs. I will not tell you these needs. But you should do it.
    Oh if you do I will be verrrrrrrrry thankful winky winky winky you know what im sayin right heh hehe heh I mean like REALLY thankful…. .. . .

    • Do you know something????? When you have spent a LOT of time in learning a discipline and someone tells you, “I know some programs that may help you with your studies. BUT, you have to stop what you are doing and spend your precious time learning a whole new discipline to be able to use that help.”

      Who has time for that??!!!

  8. I am new to these simulators. Also fairly new to electronics. I do most of my work on breadboards, but would like to add my 1 or 2 ideas to them. What simulater would you suggest ?
    Thank you very much


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