Imgur's Video to GIF - Make a GIF from hundreds of video sites
Giffing Tool - Giffing Tool is simply put: The fastest creator of high quality captioned GIFs available.
GIFMaker for Mac - GIFMaker – Created a GIF from a video or Images is the easiest way to create an animated GIF on your Mac.
Gifox - Delightful GIF Recording and Sharing App for macOS
CONV. - Convert YouTube video to MP3, GIF or MP4
Honeycam - Make wonderful Animated GIFs by using Honeycam, very easy GIF image-making and editing software!