NoNote 14No live multi-user editing; models are federated as IFC files
Parity score
36%
50%
FreeCAD, Parametric BIM modeling (walls, floors, roofs): The BIM workbench has walls, slabs, windows and roofs but fewer automated tools
Bonsai, Parametric BIM modeling (walls, floors, roofs): Authors IFC directly: walls, slabs, doors, windows and more
FreeCAD, Parametric component families: Parametric objects and a library; no family editor
Bonsai, Parametric component families: IFC types and parametric profiles; not Revit families
FreeCAD, Drawings, sections and schedules from one model: Section planes and TechDraw sheets; schedules come from spreadsheets
Bonsai, Drawings, sections and schedules from one model: Plans, sections and schedules are generated from the model; sheets are SVG-based
FreeCAD, IFC import and export: Reads and writes IFC through IfcOpenShell; complex models can lose detail
Bonsai, IFC import and export: Every edit reads and writes native IFC
FreeCAD, Opens and saves RVT project files: RVT files do not open; export IFC from Revit instead
Bonsai, Opens and saves RVT project files: RVT files do not open; exchange through IFC
FreeCAD, Structural and MEP modeling: Structural, pipe and duct objects with fewer system tools
Bonsai, Structural and MEP modeling: Supports structural and MEP IFC classes with fewer specialist tools
FreeCAD, Multi-user worksharing: No live multi-user editing
Bonsai, Multi-user worksharing: No live multi-user editing; models are federated as IFC files
Not covered by any free alternative yet: Parametric component families, Drawings, sections and schedules from one model, Structural and MEP modeling, Multi-user worksharing, Opens and saves RVT project files. See all feature gaps
File formats
Can each alternative open and save Autodesk Revit files?