Yout - YouTube to Mp3 Converter
Drop to GIF - Super simple movie to GIF conversion
Softorino YouTube Converter - Download YouTube video & audio. Watch and listen offline
GIFMaker for Mac - GIFMaker – Created a GIF from a video or Images is the easiest way to create an animated GIF on your Mac.
You-Get - Command-line utility to download media contents from the web
Giphy - Search all the gifs and make your own animated gif