Gmsh

Spec sheet

Purpose

Gmsh is an open-source 3D finite element mesh generator with a built-in CAD engine and post-processor.Read 11 Oct 2026 · gmsh.info

Free plan

YesRead 22 Sep 2026 · gmsh.info

Support

The site directs users to read the tutorial and FAQ before sending questions or bug reports, and asks users to report issues through its issue tracker.Read 11 Oct 2026 · gmsh.info

License

Gmsh is distributed under the GNU General Public License version 2 or later, with an exception for easier linking with external libraries.Read 11 Oct 2026 · gmsh.info

3D print export

YesRead 22 Sep 2026 · gmsh.info

Animation tools

NoRead 22 Sep 2026 · gmsh.info

CAD

The geometry module supports built-in and OpenCASCADE CAD kernels, including constructive solid geometry operations through OpenCASCADE.Read 11 Oct 2026 · gmsh.info

Distribution

The site offers binaries for Windows, Linux and macOS, source code, and an SDK; it also documents a pip installation.Read 11 Oct 2026 · gmsh.info

Known limitation

Gmsh does not perform geometric operations on discrete model entities such as STL-defined entities, though they can be reparametrized for meshing.Read 11 Oct 2026 · gmsh.info

License restriction

The site says this version cannot be integrated, in whole or in part, into closed-source software intended for distribution; a commercial license is required for that use or to sell a modified closed-source version.Read 11 Oct 2026 · gmsh.info

Meshing

The mesh module generates 1D, 2D and 3D meshes, including triangles, quadrangles, tetrahedra, prisms, hexahedra and pyramids.Read 11 Oct 2026 · gmsh.info

Modules

Its four modules cover geometry, meshing, solver functions and post-processing.Read 11 Oct 2026 · gmsh.info

Parametric modeling

YesRead 22 Sep 2026 · gmsh.info

Platform access

desktopRead 22 Sep 2026 · gmsh.info

Related tools

Gmsh uses OpenCASCADE for constructive geometry and can interface with the optional Netgen and Mmg3d mesh libraries.Read 11 Oct 2026 · gmsh.info

Sculpting tools

NoRead 22 Sep 2026 · gmsh.info

Solver integration

Gmsh implements an ONELAB server that can drive external solvers such as the GetDP finite element solver.Read 11 Oct 2026 · gmsh.info

System requirements

The listed binary releases require Windows 10 or later, Linux with glibc 2.28 or later, macOS 10.15 or later on Intel, or macOS 12 or later on Apple silicon.Read 11 Oct 2026 · gmsh.info

Ways to use

Gmsh can be controlled through a graphical interface, command line, .geo scripting files, or APIs for C++, C, Python, Julia and Fortran.Read 11 Oct 2026 · gmsh.info

Plans and prices

Every Gmsh plan and price →

Where Specifiction places it

• 3D modeling software#103 of 1477.8