pixeldudesmaker - Simple, web-based pixel art character generator.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
RPG Character Builder - Create thousands of unique character sprites for your 2D game project - free!
Sculptris - Sculptris: Enter a world of digital art without barriers.
Universal LPC Spritesheet Character Generator - Powerful, animated character generator for creating 2D spritesheets
Sketchfab - Sketchfab is an industrial design software tool is useful for ideation and for beginners in the industrial design field.