FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
Eagle App - Unify your creative inspiration in one place. Store anything – inspiring images, design mockups, illustrations, screenshots and more.
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
Pixave - The ultimate image organizer for the Mac.
IrfanView - IrfanView ... one of the most popular viewers worldwide.
Ego - Ego gives you one central—and lovely—location to check web statistics that matter to you.