Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Smart Pix Manager - Smart Pix Manager is a powerful and reliable solution for the management and viewing of all documents, common images, sound (WMA, MP3), and video files (AVI, MPEG), etc.
Sketch - Professional digital design for Mac.
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Affinity Designer - Professional creative software, exclusively for Mac.
StudioLine Photo Basic 4 - StudioLine Photo Basic 4 is a sophisticated image development tool that allows photo editing and multiple presentation options for personal usage.