Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Darktable - darktable is an open source photography workflow application and raw developer.
GIMP - GIMP is a multiplatform photo manipulation tool.
RawTherapee - RawTherapee is a free RAW converter and digital photo processing software.
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.