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Bonsai vs FreeCAD: catalog facts
Bonsai	FreeCAD
Best for: Architects wanting an open-source OpenBIM tool inside Blender	Best for: Designing parts you intend to machine or 3D print
Free Free and open source.	Free Free and open source, funded by donations and sponsorship.
Windows, macOS, Linux	Windows, macOS, Linux
Native IFC authoring rather than import and export Broad BIM scope from drawings to costing and scheduling All 3 strengths for Bonsai Native IFC authoring rather than import and export Broad BIM scope from drawings to costing and scheduling Free and open source, built on IfcOpenShell	Parametric: change a dimension and the model updates through its history Sketch constrained 2D geometry and build 3D objects on top of it All 5 strengths for FreeCAD Parametric: change a dimension and the model updates through its history Sketch constrained 2D geometry and build 3D objects on top of it Produces dimensioned production drawings from the 3D model Separate workbenches for product design, mechanical engineering, architecture, FEM and CAM Broad Python API for scripting and custom tools
Requires Blender and familiarity with its interface Still pre-1.0 (v0.8.5)	Workbenches vary a lot in polish and consistency CAD concepts plus FreeCAD’s own conventions make for a long learning curve All 3 limitations for FreeCAD Workbenches vary a lot in polish and consistency CAD concepts plus FreeCAD’s own conventions make for a long learning curve Large or complex assemblies can be slow
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: LGPL-2.1
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for Bonsai bonsaibim.org Catalog checked September 24, 2026	Official website Full listing and sources Sources for FreeCAD github.com/FreeCAD/FreeCAD Catalog checked September 20, 2026

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