GIFMaker for Mac - GIFMaker – Created a GIF from a video or Images is the easiest way to create an animated GIF on your Mac.
GIPHY Says - Turn your words into animated GIFs!
Giphy - Search all the gifs and make your own animated gif
Gifify - Convert any video file to an optimized animated GIF
Imgur's Video to GIF - Make a GIF from hundreds of video sites
Data GIF Maker by Google - Google's new tool turns boring data into GIFs!