ezgif.com - Ezgif.com is simple online gif maker and toolset for basic animated gif editing.
Adobe Lightroom - Adobe Lightroom is a family of image organization and image manipulation software.
Instagiffer - Create GIFs from anything!
Darktable - darktable is an open source photography workflow application and raw developer.
Gifsicle - Gifsicle is a powerful, simple command line tool for creating, editing, and optimizing animated GIFs.
Dark Room - A quick, powerful photo editor that gives you control