Gmsh
Simulation (FEA & CFD)3D finite-element mesh generator with a built-in CAD engine
- Stars
- ★ 125
- Licence
- GPL-2.0+
- Updated
- Commercial OK
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OpenFOAM
Free, open-source computational fluid dynamics toolbox
★ Stars2.3k2,275 on GitHub
Last commit18 Oct 2026
LicenceGPL-3.0Per the project
View on GitHub ↗
From GitHub, fetched 19 Oct 2026.
OpenFOAM is a widely used open-source CFD package with solvers for turbulence, heat transfer, multiphase flow and combustion. This listing links to the OpenFOAM Foundation release; ESI also publishes a separate OpenFOAM distribution.
Fit: files and licence
| Runs on | Linux, Windows (WSL), macOS (Docker) |
|---|---|
| Commercial use | Allowed Open-source licence (GPL-3.0): the Open Source Definition rules out restrictions on fields of use, including business use. |
Sources: opensource.org/osd. “Runs on” is from this listing. Blank means we haven't found it in official docs yet, not that it's unsupported.
Free alternative to
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