Clara.io - Free online 3D modeling software: Design, editor, animation, rendering, & lots of free 3D models. Supports Three.JS, Blend, FBX, OBJ, V-Ray, Babylon.JS, STL.
TurboRender - Rendering at your workstation?
SelfCAD - SelfCAD is an online 3D modeling and slicing software.
SheepIt Render Farm - A free distributed render farm for Blender
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
SuperRenders Farm - SuperRendersFarm.COM is a CPU & GPU cloud render farm, supporting all 3D Render Engines: Arnold, Redshift, Octane, Vray, and more.