Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
JPEGmini - JPEGmini - The Photo Optimization Tool Trusted by Tens of Thousands Image Perfectionists
Ashampoo® Photo Optimizer - Ashampoo Photo Optimizer 8 enhances your photos at the click of a button! The program fully automatically adjusts colors, contrasts and exposure settings to perfection for individual images or entire collections.
Jihosoft Photo Eraser - Jihosoft Photo Eraser is a magic auto photo eraser tool for you to removes unwanted objects, persons, watermarks, blemishes, etc from photos.
Polarr - MacOS, Windows, iOS, Android and online photo editing tools & free photo editors.
TinyPNG - Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!