nomacs - nomacs is a free, open source image viewer, which supports mu
OpenToonz - OpenToonz is an animation program that is a free software version of Toonz, the animation software...
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Synfig Studio - Just another WordPress site
sxiv - Simple X Image Viewer. Contribute to muennich/sxiv development by creating an account on GitHub.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.