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Dune 3D vs CQ-editor: catalog facts
Dune 3D	CQ-editor
Free The open-source software is available without a license fee. Hosting, hardware and…	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, Linux	Windows, macOS, Linux
Supports STEP exchange, chamfers and fillets.	Step through a script and inspect how each operation changes the model.
Its focus is mechanical CAD rather than character animation.	Requires learning CadQuery and Python rather than only drawing with a mouse.
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: Apache-2.0
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.