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Dune 3D vs Onshape: catalog facts
Dune 3D	Onshape
Free The open-source software is available without a license fee. Hosting, hardware and…	Freemium Free tier available; paid plans add private documents and more storage.
Windows, Linux	Web
Supports STEP exchange, chamfers and fillets.	No desktop install needed since the entire CAD environment runs in the browser Real-time collaboration and built-in version history simplify team design work
Its focus is mechanical CAD rather than character animation.	Requires a stable internet connection since there is no offline desktop mode Free tier makes projects publicly viewable, which is not suitable for private work
Downloadable app	Web application
Open source	Closed source
License: GPL-3.0	License not stated
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.