Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
PicsArt - Explore 100,000,000+ awesome images and photos on the web
Pixlr-o-matic - Add retro effects to your photos in a snap!
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.