ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Compressnow - Compressnow is a web service used for compressing the image to be used for different purposes in the websites or promoting the products as this is a problem for both web developers and end-users.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
Imagine - Imagine Freeware Image & Animation Viewer for Windows
Phatch - Phatch = Photo & Batch!
Geekersoft Free Online Image Compressor - With this online image compression tool, you can quickly compress photos in JPEG, JPG, PNG, GIF and other formats and export high-definition images.