Open 3d Model Viewer (*free links on website)
Open 3D Model Viewer – Free, Open-Source productivity tool for 3D designers, 3D printing enthusiasts and game programmers.
Download (v1.1, Windows 32 & 64 Bit)
Installer-less version (ZIP, Windows 32 or 64 Bit)
Massive 3D Format support
Powerful 3D Viewer and basic editor for 40+ file formats, including OBJ, 3DS, BLEND, STL (more info), FBX, DXF, LWO, LWS, MD5, MD3, MD2, NDO, X, IFC and Collada. One of only a few independent FBX Viewers.
Rapid User Interface
The Model Viewer has a tabbed UX so multiple scenes can be open at the same time. 3D views are split in up to four viewports. Different camera modes (orbit, FPS or axis-aligned) are available for each viewport. New files are loaded in the background.
https://github.com/acgessler/open3mod/
