Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
FotoFlexer - FotoFlexer is the most powerful online photo editor in existence.
Sketch - Professional digital design for Mac.
Photoshop.com - Photoshop.
Adobe Illustrator CC - Adobe Illustrator CC is a commercial vector graphics editor.
Fun Photo Box - FunPhotoBox is a free photo editing device where you can make clever pictures from your photographs.