Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
Polarr Photo Editor 3 - The most powerful photo editor in the web.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.