Photoshop.com - Photoshop.
ACDSee - ACDSee is an image viewer that uses very little system resources, and it has a small, sleek size that won't take up much space on your system.
piZap - Free online photo editing software.
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
Phixr - Phixr is a free online photograph proofreader, an instrument for editing your photos in your web program.
Fotor - Fotor is an all in one visual platform. It includes photo editor, collage maker, and graphic designer. You are free to make a visual look more beautiful.