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BRL-CAD vs FreeCAD: catalog facts
BRL-CAD	FreeCAD
Free Free and open source under the LGPL.	Free Free and open source, funded by donations and sponsorship.
Windows, macOS, Linux	Windows, macOS, Linux
Constructive solid geometry with genuine analysis and ray tracing tools Decades of development and a stable, scriptable command set	Parametric: change a dimension and the model updates through its history Sketch constrained 2D geometry and build 3D objects on top of it
The interface is unlike commercial CAD and takes serious effort to learn Not aimed at mechanical drafting or 3D printing workflows	Workbenches vary a lot in polish and consistency CAD concepts plus FreeCAD’s own conventions make for a long learning curve
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-2.1	License: LGPL-2.1
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.