GifGear - How do you make a gif
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Gifsicle - Gifsicle is a powerful, simple command line tool for creating, editing, and optimizing animated GIFs.
GIMP - GIMP is a multiplatform photo manipulation tool.
ezgif.com - Ezgif.com is simple online gif maker and toolset for basic animated gif editing.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.