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Online 3D Viewer vs Autodesk Viewer: catalog facts
Online 3D Viewer	Autodesk Viewer
Free Free and open source.	Free Free to use in the browser.
Web	Web
Opens many 3D and CAD formats, including STEP, IFC and FBX Runs in the browser with no install	Opens many CAD formats, including DWG, RVT, STEP and SolidWorks files No software to install
A viewer only, not a modeling tool	Requires a WebGL-capable browser A viewer only, not an editor
Web application	Web application
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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