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3D Model Viewer vs F3D: catalog facts
3D Model Viewer	F3D
Free Free and open source under the MIT licence.	Free Free and open source.
Android	Web
Opens OBJ, STL and DAE files Readable source code useful for learning OpenGL	Opens many 3D and CAD formats in one viewer Gaussian splatting and volume rendering support
Deliberately basic feature set Viewing only, no editing	A viewer, not an editor Minimal interface with few editing features
Downloadable app	Downloadable app, Web application
Open source	Open source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	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.