ImageViewer is a small application which displays images based on the GNUstep API. It handles all image types known to GNUstep (i.e., TIFF, PNG, JPEG, GIF, etc.).
Preview is a simple image viewer for GNUstep. It
is designed to be easy to use and support GNUstep
features such as image design,
pasteboard/services, printing, and layout.