A powerful open-source parametric 3D modeler ideal for mechanical engineering, supporting Python scripting, running on Windows, Linux, and Mac, with modular architecture allowing extensive adaptability and use with scientific computing libraries.
Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- BSD
- Snapcraft
- Flathub
- PortableApps.com
- Flatpak




Comments about FreeCAD as an Alternative to Autodesk Revit
I don't want to be this negative, but this software is really lacking a lot and yet it is the closest to Bim that we have in open source so far. I feel like this should be a job to blender community since writing a Bim suit alone is colossal work. I could work with the lacking features, but software is really far from intuitive for architects.
free cad has now dedicated BIM workbench

Most users think FreeCAD is a great Autodesk Revit alternative.
FreeCAD is the most popular Windows, Mac & Linux alternative to Autodesk Revit.
FreeCAD is the most popular Open Source & free alternative to Autodesk Revit.
- FreeCAD is Free and Open Source
























The FreeCAD BIM Workbench is increasingly a useful alternative to Autodesk Revit. It includes many similar tools and has good IFC support. So while it is not a drop-in replacement, it is viable for smaller projects. Do some research on their forum and see what you think.