Giphy Chrome Extension - Respond to emails, tweets & more w/ GIFs in a jiffy
GIFSOM - Create GIFs up to 4 seconds from sources like YouTube, Facebook Videos, TikTok, Twitter, and more in high quality. GIFSOM stores the GIFs absolutely free.
PopKey for Desktop - Quickly share ridiculous GIFs from Mac or Windows
4Gifs.com - Funny Animated GIF archive.
All the GIFs - Search all the GIFs right from your Mac
Gifyu - Upload GIF Images and Share Pictures Online