Gmsh is a free 3D finite element grid generator with a build-in CAD engine and post-processor. Its design goal is to provide a fast, light and user-friendly meshing tool with parametric input and advanced visualization capabilities. Gmsh is built around four modules: geometry, mesh, solver and post-processing. The specification of any input to these modules is done either interactively using the graphical user interface or in ASCII text files using Gmsh's own scripting language.
See the screencasts for a quick tour of Gmsh's graphical user interface, or the reference manual for a more thorough overview of Gmsh's capabilities and some frequently asked questions.
Gmsh is distributed under the terms of the GNU General Public License (GPL):
Current stable release (version 2.13.1, July 15 2016): Windows 32 bit / 64 bit, Linux 32 bit / 64 bit, Mac OS X and source code
A tutorial
introducing all key features and concepts is included in all the
versions in the tutorial directory.
Make sure to read
these examples before sending questions or bug reports!
svn co
https://onelab.info/svn/gmsh/trunk
gmsh'
If you use Gmsh please cite the following reference in your work (books, articles, reports, etc.): C. Geuzaine and J.-F. Remacle. Gmsh: a three-dimensional finite element mesh generator with built-in pre- and post-processing facilities. International Journal for Numerical Methods in Engineering 79(11), pp. 1309-1331, 2009. You can also cite additional references for specific features and algorithms.
Please use the public mailing list gmsh@onelab.info to send questions or ask for help. If you think you have found a bug in the program, you can file a report directly here.
Gmsh is copyright (C) 1997-2015 by C. Geuzaine and J.-F. Remacle (see the CREDITS file for more information) and is distributed under the terms of the GNU General Public License (GPL) (version 2 or later, with an exception to allow for easier linking with external libraries).
In short, this means that everyone is free to use Gmsh and to redistribute it on a free basis. Gmsh is not in the public domain; it is copyrighted and there are restrictions on its distribution (see the license and the related frequently asked questions). For example, you cannot integrate this version of Gmsh (in full or in parts) in any closed-source software you plan to distribute (commercially or not). If you want to integrate parts of Gmsh into a closed-source software, or want to sell a modified closed-source version of Gmsh, you will need to obtain a different license. Please contact us directly for more information.
See the ONELAB web site for more screenshots.