This is the official website of the GNU Image Manipulation Program (GIMP).
GIMP is a cross-platform image editor available for GNU/Linux, OS X, Windows and more operating systems. It is free software, you can change its source code and distribute your changes.
Whether you are a graphic designer, photographer, illustrator, or scientist, GIMP provides you with sophisticated tools to get your job done. You can further enhance your productivity with GIMP thanks to many customization options and 3rd party plugins.
ver: 2.10.6 / Sep 14.2018
ver: 2.8.20 / Feb 08.2017
... the interface is a bit too complex, its not easy to find the option you need
I can edit my photos with this wonderful software! I found what I was looking for a long time ago. Its easy to use!