Retrobatch - Retrobatch is a unique application for automating actions to tens, hundreds, and even thousands of images at the same time
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
FastPictureViewer - A hardware-accelerated image viewer for the modern Windows platform.
Sketch - Professional digital design for Mac.
AYVY - JPEG/PNG/RAW Images viewer
Affinity Designer - Professional creative software, exclusively for Mac.