ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Online Convert - Convert files like images, video, documents, audio and more to other formats with this free and fast online converter.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
FileStar - With FileStar you can "do anything with any file".
Phatch - Phatch = Photo & Batch!
Batch Image Processor 2010 - Batch-process & create web gallery of images