Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.
IrfanView - IrfanView ... one of the most popular viewers worldwide.
CotEditor - Open Source Plain-Text Editor for OS X
JPEGView - JPEGView is a small and fast viewer/editor for JPEG, BMP, PNG, GIF and TIFF images.