Vectr - Free vector graphics editor. A simple yet powerful web and desktop cross-platform tool for everyone.
Sculptris - Sculptris: Enter a world of digital art without barriers.
PixaPal - Create videos, graphics and documents online
ShapeShop - ShapeShop is an advanced and professional 3D design and modeling application that comes with an easy-to-use and user-friendly interface.
GIMP Online - Powerful graphics editor in the cloud
Misfit Model 3D - Misfit Model 3D is a 3D model editor that basically operates with triangle-based models.