Cascading Slides is an awesome media browser and slideshow.

Really simple to use, powerful and feature-rich tool to view and convert graphic files

Imagina is a next-generation image viewer and editing tool.

Basic image viewer for Windows users

The GSA Image Analyzer is a program for the scientific evaluation of 2D images (image analysis).

Simple and easy to use image viewer (windows size = image size).

JPEGView is a small and fast viewer/editor for JPEG, BMP, PNG, GIF and TIFF images.

Quickly view a sequence of images as an animation.

Fast and simple GTK+ image viewer

The handy Easy PhotoViewer utility has been designed to be very easy to use and offers some very nice features.

GIV is a 8-bit to 32-bit and floating point image and vector viewer for gtk+.

Photo Gadget Viewer is a free program for Windows made for browsing through digital photos.

Roboreader is a fast and free advanced image viewer.

Instantly view, locate, modify and organize images and graphics.

FuturixImager is a fast, simple and handy graphics viewer for Windows with focus on simplicity and unobtrusiveness.