"I've tried many image browsers over the years, including IrfanView and ACDSee, but after using XnView, I can almost forget about the rest.
"XnView is a fast image browser that supports more than 400 graphic file formats, including standard ones such as GIF, JPEG, PNG, BMP, and TIFF, and a myriad of rare ones. (A version of the program for handheld devices, XnView Pocket, doesn't offer as many features, and supports about 15 input formats.)..."
