Squash 2 for Mac - The easiest way to compress and optimize images for the web
Polarr Photo Editor 3 - The most powerful photo editor in the web.
Icecream Image Resizer - Image resizer by Icecream Apps is a program to resize images fast and free. Windows version. Free Download.
Bulk Resize Photos - Resize large photos in bulk
Resizing.app - Image resizing has never been so simple with free online resizing.app. Convert, optimize, resize images with ease and for absolutely free.
IMG.LY - Power Your Apps with IMG.LY | The Leading Provider of Design, Photo, and Video Editing SDKs