SansGUI 1.2.1 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The common filename for the program's installer is SansGUI.exe.
The following version: 1.2 is the most frequently downloaded one by the program users. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. This software was originally developed by ProtoDesign, Inc. The program lies within Education Tools, more precisely Science Tools.
From the developer:
Modeling and Simulation Environment for developing and deploying scientific and engineering simulators without writing any Graphical User Interface code.
You may want to check out more software, such as CAEFEM, Photometric Toolbox32 or GenealogicaGrafica, which might be related to SansGUI.