XnView is a utility for viewing and converting graphic files which is able to show approximately 400 graphic files. It is provided as freeware for private non-commercial or educational use. Among other features, XnView is able to convert images to different formats.
Furthermore, its interface allows piling up images with the help of tabs, and it can be integrated in the Windows Explorer. Download the latest version in the author’s web site: http://www.xnview.com/
