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 - Search all the gifs and make your own animated gif
CONV. - Convert YouTube video to MP3, GIF or MP4
GIPHY Says - Turn your words into animated GIFs!
Video Express Converter - This is an online service used to convert video from one format to another and apply various changes to the video before converting, like trimming it or adding subtitles.
Data GIF Maker by Google - Google's new tool turns boring data into GIFs!