Piio - Generates responsive images so you don't have to optimize
Shrink Me - Compress images with one drag / click
Imagify - Optimize and resize images online and through your CMS.
TinyJPG - Compress JPEG images with perfect quality and file size
Crunch - Crunch is a No Judgment Gym that believes in making serious exercise fun by fusing fitness and entertainment. Join Crunch for all your fitness needs!
Watermark.ink - Online Photo Watermarker