Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Img.vision - Image hosting & video hosting for eCommerce sellers
Onshape - Onshape is the first full-cloud 3D CAD system. It runs in a web browser and on any mobile device.
UploadHouse - Thumbnail and resize your photos and images
FreeCAD - An open-source parametric 3D modeler
ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.