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Autodesk Viewer vs F3D: catalog facts
Autodesk Viewer	F3D
Free Free to use in the browser.	Free Free and open source.
Web	Web
Opens many CAD formats, including DWG, RVT, STEP and SolidWorks files No software to install	Opens many 3D and CAD formats in one viewer Gaussian splatting and volume rendering support
Requires a WebGL-capable browser A viewer only, not an editor	A viewer, not an editor Minimal interface with few editing features
Web application	Downloadable app, Web application
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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