OpenFOAM
OpenFOAM is a GPL-licensed C++ CFD library and solver suite providing dozens of pre-built solvers for incompressible, compressible, multi-phase, combustion, and DNS/LES simulations — the leading open-source choice in CFD.
Full Pricing Breakdown
Official software licensing terms, volume discounts, educational exemptions, and renewal fees vary significantly across countries, exchange rates, and regional authorized resellers. Click below to verify real-time terms directly on the vendor portal.
Key Capabilities
Solvers
Meshing
Advanced
Extensibility
Technical Audit
Compatibility & Interoperability
Trust & Support
The Pros
- Zero license cost — scales to thousands of cores for free
- Full C++ source is open and customisable
- Massive academic and motorsport adoption
The Cons
- Command-line driven; no native GUI
- Steep learning curve for the dictionary-file workflow
- Commercial support requires third-party vendors (ESI, OpenCFD, CFD Direct)
CADGuide Verdict
Final Professional Conclusion
"The leading free, open-source CFD toolbox, highly flexible for researchers and custom engineering simulations."
Expert Q&A
?What is OpenFOAM used for?
Free open-source C++ CFD toolbox used widely in academia, research, and motorsport. OpenFOAM is a CAE / CAM solution widely adopted in Research, Aerospace, Automotive.
?How much does OpenFOAM cost?
OpenFOAM is completely free to download and use with no paid license required. Visit the official website for download and license terms.
?Is OpenFOAM really free?
Yes — OpenFOAM is a free product distributed by the vendor. You can download and use it without paying a license fee. Premium services, training, or vertical add-ons may be sold separately.
?What operating systems does OpenFOAM support?
OpenFOAM runs on Linux, Windows, and macOS.
?Which file formats does OpenFOAM support?
OpenFOAM imports blockMeshDict, snappyHexMeshDict, STL, OBJ, MSH, UNV, CGNS and exports VTK, OpenFOAM time dirs, EnSight, ParaView (.foam), CSV. Direct CAD associative interfaces and neutral solver/exchange formats are supported depending on your licensed modules.
?What are the best alternatives to OpenFOAM?
The closest alternatives to OpenFOAM are ANSYS Fluent, SimScale, Simcenter STAR-CCM+. ANSYS Fluent (offered on a Subscription license) competes directly on core Research workflows, while SimScale (offered on a Subscription license) is another top-rated option in the same category. Compare their full technical specifications, file-format compatibility, and official licensing options side-by-side on CADGuide.
