Shrink O'Matic - Shrink O'Matic is an AIR application to easily (batch) resize (shrink) images.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Caesium Image Compressor - Compress your pictures up to 90% without visible quality loss.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
ImageOptim - Faster web pages and apps.
Fotosizer - Fotosizer is a freeware batch image resizer tool. It resizes your photos in just 3 easy steps - 1.