GIPHY Create - Create animated GIFs from videos (by Giphy)
Trigraphy - Photo editing app that allows you to make mosaic/abstract looking art.
Giffing Tool - Giffing Tool is simply put: The fastest creator of high quality captioned GIFs available.
Dreamscope - Make and share 'deep dream' images using dozens of supplied styles or your own.
Data GIF Maker by Google - Google's new tool turns boring data into GIFs!
Photomosh - Turn anything into a vaporwave