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CQ-editor vs BRL-CAD: catalog facts
CQ-editor	BRL-CAD
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source under the LGPL.
Windows, macOS, Linux	Windows, macOS, Linux
Step through a script and inspect how each operation changes the model.	Constructive solid geometry with genuine analysis and ray tracing tools Decades of development and a stable, scriptable command set
Requires learning CadQuery and Python rather than only drawing with a mouse.	The interface is unlike commercial CAD and takes serious effort to learn Not aimed at mechanical drafting or 3D printing workflows
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: LGPL-2.1
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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