This is a growing list of Graphical User Interfaces (definition at Wikipedia) designed for operating OpenFOAM.
A separate list of preprocessors and post-processors is available here: Other Software
1 Commercial:
- Symscape
- Beta CAE
- Icon
- CASTNet - CAD model based preprocessing and meshing tool for OpenFOAM
- BlendMe
- Helyx
- HVAC Tool - a GUI for Building Simulation and HVAC Engineering with OpenFOAM
2 OpenSource:
3 Demo Version:
- HVAC Tool - you can try it as demo version without constrain but you are limited by exporting cases