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3D Model Viewer vs eDrawings Viewer: catalog facts
3D Model Viewer	eDrawings Viewer
Free Free and open source under the MIT licence.	Free The viewer is free; eDrawings Professional is a separate product.
Android	Windows, macOS, Android, iOS
Opens OBJ, STL and DAE files Readable source code useful for learning OpenGL	Free viewing of 3D models and 2D drawings Opens DWG and DXF files
Deliberately basic feature set Viewing only, no editing	Viewing only; editing and publishing need other eDrawings products Proprietary software
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License: Proprietary
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 October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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