ShowImg is a feature-rich image viewer that can display numerous formats, including JPEG, PNG, GIF and MNG.
It consists of a tree view frame, a directory/preview frame and a view frame.
The larger view frame can be exchanged with the smaller directory/preview frame. It can preview and display images from multiple directories and search for identical images.
ShowImg also features a full-screen mode, zooming, sorting, drag-and-drop with Konqueror and support for images in compressed archives.