FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
Portrait Professional - PortraitPro is the world’s best-selling retouching software. Fast and intuitive, PortraitPro edits your portrait photos for beautiful results
IrfanView - IrfanView ... one of the most popular viewers worldwide.
PT Portrait - Easy portrait editing software. Remove blemishes. Thin wrinkles & perfect skin.
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
Pixarra Selfie Studio - Photo Editing for Selfies