GIFMaker for Mac - GIFMaker – Created a GIF from a video or Images is the easiest way to create an animated GIF on your Mac.
Wallcat - Enjoy a new, beautiful wallpaper, every day.
GIPHY Says - Turn your words into animated GIFs!
Splashify - Beautiful desktop wallpapers for Mac and Windows
Giphy - Search all the gifs and make your own animated gif
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.