FotoFlexer - FotoFlexer is the most powerful online photo editor in existence.
ezgif.com - Ezgif.com is simple online gif maker and toolset for basic animated gif editing.
piZap - Free online photo editing software.
Instagiffer - Create GIFs from anything!
Fun Photo Box - FunPhotoBox is a free photo editing device where you can make clever pictures from your photographs.
Gifsicle - Gifsicle is a powerful, simple command line tool for creating, editing, and optimizing animated GIFs.