Piio - Generates responsive images so you don't have to optimize
Website Image Speed Test - Beautiful & easy free analysis of the images on your page
Imagify - Optimize and resize images online and through your CMS.
Pingo - Optimize images for the web quickly 🖼️⚡
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!
Pixpie - Optimize your images and speed up your site on WordPress