gmsh
Gmsh is a three-dimensional finite element mesh generator with built-in pre- and post-processing facilities.
Decision gist · record as of 2026-08-14
Yes, if you are working on open-source or academic finite element projects and need a mature, cross-platform mesh generator. The copyleft license and binary-only distribution make it unsuitable for proprietary software. Medium install friction is acceptable for the maturity and feature completeness it provides.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires a platform with a supported binary wheel (macOS 10.15+, Windows x86_64, or Linux x86_64); no pure-Python fallback.
- Medium install friction due to platform-specific binary wheels (macOS x86_64 and arm64, Linux, Windows).
- Package is actively maintained with recent releases and carries Production/Stable status.
License · maintenance · safety
GPLv2+ (copyleft) — GPLv2+ copyleft license means any derivative work or modification must also be open-source under compatible terms; acceptable for research and education but requires careful review in proprietary or closed-source projects.
last release 2026-03-24 (143 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 396,981 downloads/mo, #6,966 on PyPI
Alternatives
Verify before relying
pip install gmsh
import gmsh
gmsh.initialize()
gmsh.fltk.run()
gmsh.finalize()- Whether the Python API is fully feature-complete relative to the C++ API or if some advanced features require direct C/C++ access
- Performance characteristics and typical mesh size limits for common use cases
What it is and what it does
Gmsh is a Python wrapper around the official Gmsh finite element mesh generator, bundling the compiled application and SDK for cross-platform use. It provides both a graphical interface (via the FLTK toolkit) and a Python API for programmatic mesh generation, making it accessible to researchers and engineers who need to create structured or unstructured meshes for finite element analysis without managing separate C++ dependencies.
The package includes pre- and post-processing facilities and is intended for scientific and educational use. It ships as platform-specific wheels containing pre-built binaries, so installation is straightforward but tied to the supported architectures (macOS x86_64 and arm64, Linux x86_64, Windows x86_64). The copyleft license and binary-only distribution model mean it is best suited for open-source or academic projects rather than proprietary software.
Use it for
- Generate unstructured tetrahedral meshes for finite element simulations in structural or fluid dynamics analysis
- Create structured or hybrid meshes for CAD-based engineering workflows with built-in geometry preprocessing
- Batch-process mesh generation in research pipelines using the Python API without launching the GUI
- Prototype and visualize mesh quality before running expensive computational solvers
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are working on open-source or academic finite element projects and need a mature, cross-platform mesh generator.
The copyleft license and binary-only distribution make it unsuitable for proprietary software. Medium install friction is acceptable for the maturity and feature completeness it provides.
Install
gmsh on PyPI
Before you install
Medium install friction due to platform-specific binary wheels (macOS x86_64 and arm64, Linux, Windows). Package is actively maintained with recent releases and carries Production/Stable status.
Requires a platform with a supported binary wheel (macOS 10.15+, Windows x86_64, or Linux x86_64); no pure-Python fallback.
License in practice
GPLv2+ copyleft license means any derivative work or modification must also be open-source under compatible terms; acceptable for research and education but requires careful review in proprietary or closed-source projects.
Quickstart
pip install gmsh
import gmsh
gmsh.initialize()
gmsh.fltk.run()
gmsh.finalize()Verify before relying
- Whether the Python API is fully feature-complete relative to the C++ API or if some advanced features require direct C/C++ access
- Performance characteristics and typical mesh size limits for common use cases
Package facts
| License | GPLv2+ copyleft |
| Python support | Not specified |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 143 days since the last release |
| First released | |
| Downloads | 396,981 / month, #6,966 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: EducationIntended Audience :: Science/ResearchLicense :: OSI Approved :: GNU General Public License v2 or later (GPLv2+)Operating System :: MacOS :: MacOS XOperating System :: Microsoft :: WindowsOperating System :: POSIX :: LinuxProgramming Language :: CProgramming Language :: C++Programming Language :: PythonTopic :: Scientific/Engineering |
Evidence: gmsh-4.15.2-py2.py3-none-macosx_10_15_x86_64.whl; gmsh-4.15.2-py2.py3-none-macosx_12_0_arm64.whl; gmsh-4.15.2-py2.py3-none-manylinux_2_24_x86_64.whl; gmsh-4.15.2-py2.py3-none-win_amd64.whl
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