8 Free And Open Source Simulator Software For Engineers!

By Atithya Amaresh


5. Maxima

Download Link: http://sourceforge.net/projects/maxima/files/latest/download?source=recommended

Supported OS: Windows

License: GPL

Maxima is a fairly complete computer algebra system written in Common Lisp with an emphasis on symbolic computation.

6. Ngspice

Download Link: http://sourceforge.net/project/showfiles.php?group_id=38962

Supported OS: Windows, Linux

License: GPL

Ngspice is a mixed-level/mixed-signal circuit simulator. Its code is 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.

7. Qfsm

Download Link: http://sourceforge.net/projects/qfsm/files/latest/download

Supported OS: Windows, Linux

License: GPL

A graphical tool for designing finite state machines

8. QSapecNG

Download Link: http://sourceforge.net/projects/qsapecng/files/latest/download?source=directory

Supported OS: Windows

License: GPL

QSapecNG is a Qt-based symbolic analysis program for linear analog circuits. In fact, it consists of two indipendently parts: the SapecNG framework engine, and the application gui QSapecNG.

Found any open source simulator helpful? Check out other software articles.


  1. good evening, my name is OFEM an electrical engineering student, pls i need tutorials on a 1000watt hybrid solar/inverter system.

    • Hi Pork, these are free ebooks, you can download from the links itself. There is no need for images. But we will check at our end if images can be added to the article.


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