Ezgif
Ezgif focuses on editing and converting animated images.
What it does
Ezgif trims, resizes, and converts animated images in the browser.
When to use it
When a social GIF is too large, shorten the clip and check the loop.
Visit Ezgif official site
Cleanup.pictures
Cleanup.pictures focuses on erasing unwanted objects from photos.
remove.bg
remove.bg focuses on removing backgrounds around photo subjects.
TinyPNG
TinyPNG focuses on reducing PNG and JPEG image size.