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Onshape vs Dune 3D: catalog facts
Onshape	Dune 3D
Freemium Free tier available; paid plans add private documents and more storage.	Free The open-source software is available without a license fee. Hosting, hardware and…
Web	Windows, Linux
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	Supports STEP exchange, chamfers and fillets.
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	Its focus is mechanical CAD rather than character animation.
Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
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.