XnConvert - XnConvert is an easy image converter for graphic files, photos and images available on Windows...
Image Converter Plus - Image Converter Plus is a multifunctional conversion and resizing tool for Windows operating system.
Photopus Pro - Photopus Pro is an easy to use batch image processing to simplify the process to convert, add watermarks (text and image), resize, transform, touch-up, rename, and apply effects to your digital images.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Online Image Converter - Online Image Converter converts your BMP, JPG, PNG, GIF or ICO files quickly and easily.
FileStar - With FileStar you can "do anything with any file".