321Soft (http://www.321soft.com) has released Image Converter, a Mac OS X app provides a way to convert between various pictures. It requires Mac OS X 10.6.8 or higher.
It supports a variety of image formats — both common formats Like PNG, jpg, bmp, gif, or, through a professional digital camera the extracted RAW photo formats (CR2, NEF, etc), as well as the icon format. 321Soft Image Converter costs US$14.95 as single-user application. A demo is available for download.