OpenFOAM Alternatives (January 2026)

OpenFOAM

OpenFOAM | Free CFD Software | The OpenFOAM Foundation

https://openfoa.org/

OpenFOAM is the leading free, open source software for computational fluid dynamics (CFD), owned by the OpenFOAM Foundation and distributed exclusively open source under the General Public...

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1.
CFD Software: Fluid Dynamics Simulation Software
https://www.ansy
.com/products/fluids/

See how Ansys computational fluid dynamics (CFD) simulation software enables engineers to make better decisions across a range of fluids simulations.

2.
Simcenter STAR-CCM+ CFD software | Siemens Software
https://plm.sw.siemen
.com/en-US/simcenter/fluids-thermal-simulation/star-ccm/

Simcenter STAR-CCM+ is a computational fluid dynamics (CFD) software used to simulate products operating under real world conditions.

3.
FreeCAD: Your own 3D parametric modeler
https://www.freeca
.org/

FreeCAD, the open source 3D parametric modeler

4.
Ansys Fluent | Fluid Simulation Software
https://www.ansy
.com/products/fluids/ansys-fluent/

Ansys Fluent is the industry-leading fluid simulation software known for its advanced physics modeling capabilities and unmatched accuracy.

5.
AFT | Pipe Flow Modeling Software for Engineers
https://www.af
.com/

AFT pipe flow analysis and modeling software is used by engineers in over 80 countries. Learn more and download a free demo.

6.
Simulation Software | Engineering in the Cloud | SimScale
https://simscal
.com/_en/?/

SimScale is a full-cloud CAE simulation software that helps you perform CFD, FEA, and thermal simulations for CAD models in the cloud.

7.
Ansys | Engineering Simulation Software
https://catalog.ansy
.com/

Ansys engineering simulation and 3D design software delivers product modeling solutions with unmatched scalability and a comprehensive multiphysics foundation.

8.
Microsoft Build of OpenJDK
https://www.microsof
.com/openjdk/

The Microsoft Build of OpenJDK is a new no-cost long-term supported distribution and Microsoft’s new way to collaborate and contribute to the Java ecosystem.

9.
Real-Time Operating System - FreeRTOS - AWS
https://aws.amazo
.com/freertos/

FreeRTOS is an open source, real-time operating system for microcontrollers and microprocessors that makes small, low-power devices easier to program, deploy, and secure.