Giphy - Search all the gifs and make your own animated gif
ezgif.com - Ezgif.com is simple online gif maker and toolset for basic animated gif editing.
GIFmaker - GIFmaker gives you the freedom and flexibility to create unique, professional GIFS that are on-brand, on your own!
Instagiffer - Create GIFs from anything!
GIPHY Says - Turn your words into animated GIFs!
Gifox - Delightful GIF Recording and Sharing App for macOS