Blender - Blender is the open source, cross platform suite of tools for 3D creation.
SEA3D - An open-source format and tools for game developers 🎮 http://sunag.github.io/sea3d/
Sculptris - Sculptris: Enter a world of digital art without barriers.
Autodesk FBX Review - FBX Review is a lightweight, standalone software tool for viewing 3D assets and baked animations...
Misfit Model 3D - Misfit Model 3D is a 3D model editor that basically operates with triangle-based models.
MeshLab - System for processing and editing 3D triangular meshes, provides a set of tools for editing...