Gmsh
Gmsh: A free engineering mesh generator for simulation workflows, not general-purpose 3D modeling. Ranked #143 of 147 in 3D Modeling Software by our editors (3.0/10); pricing: Free plan; best for engineering mesh generation and simulation prep.
At a glance
- Editor score3.0 / 10
- PricingFree plan
- Best forEngineering mesh generation and simulation prep
- Free planYes
- Paid fromFree
- Platform accessDesktop
- Facts checked22 Sep 2026
Where it wins
- Free GPL software with Windows, macOS, and Linux support
- Parametric CAD, OpenCASCADE geometry, remeshing, and STL export
- Solver integration, visualization, scripting, and multi-language APIs
Where it doesn't
- Focused on engineering meshing rather than broad 3D modeling
- No sculpting or animation tools
- The workflow may require scripting or simulation-domain knowledge
Our verdict on Gmsh
Gmsh is an open-source desktop application for generating three-dimensional finite-element meshes and preparing engineering or scientific simulation workflows. It combines a built-in CAD geometry engine, mesh generation, solver integration, visualization, and post-processing in one application. Users can work through its graphical interface, command line, scripting language, or C++, C, Python, Julia, and Fortran APIs. Its intended audience includes engineers, researchers, and technical teams that need parametric geometry, simulation-ready meshes, and control over automated workflows.
Pricing is straightforward: Gmsh is free software under the GPL, with no paid plans. That makes it suitable for individuals, research groups, and organizations seeking an open-source tool without subscription tiers. Its platform coverage includes Windows, macOS, Linux, and an API-oriented workflow. The published feature set includes 3D finite-element mesh generation, OpenCASCADE constructive solid geometry operations, CAD-file import, STL import and export, remeshing, and post-processing animation and image export. Users choosing Gmsh should be comfortable with an engineering-oriented interface rather than expecting a consumer 3D design product.
Gmsh’s main strength is its fit within simulation ecosystems. Integrations with OpenCASCADE, Netgen, Mmg3d, GetDP, and ONELAB support geometry creation, mesh improvement, solver workflows, and parameter-driven studies. Post-processing covers scalar, vector, and tensor data, while command-line and multi-language APIs support repeatable processes. The tradeoff is focus: category specs identify parametric modeling and print export, but not sculpting or animation tools. Choose Gmsh for finite-element mesh generation, solver preparation, remeshing, and technical visualization. Choose another product if the priority is general-purpose modeling, digital sculpting, or animation production.
Your product? Our editors can test Gmsh in depth and publish a review, labelled as paid · from $149/mo →
Gmsh pricing
Gmsh fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Platform access | Desktop |
| Sculpting tools | No |
| Animation tools | No |
| Parametric modeling | Yes |
| Render engine | Not verified |
| 3D print export | Yes |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 5 integrations: OpenCASCADE, Netgen, Mmg3d, GetDP, ONELAB |
| Pricing | Free plan |
| Website | gmsh.info |
| Facts checked | 22 Sep 2026 |
Gmsh integrations
Gmsh lists 5 integrations on its own site.
- OpenCASCADE
- Netgen
- Mmg3d
- GetDP
- ONELAB
Alternatives to Gmsh
- BlenderA broad free 3D suite covering modeling, animation, rendering, scripting, and print export.9.3
- HoudiniA deep procedural 3D suite for VFX, animation, games, and technical art.9.1
- Autodesk MayaA mature desktop suite for studios handling modeling, animation, VFX, and rendering.9.0
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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