Fluid - Turn Your Favorite Web Apps into Real Mac Apps.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
WebCatalog - Run your favorite web apps natively
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
ToDesktop - Convert your web app to a desktop app in 2 minutes.
Ralpha Image Resizer - High-speed image batch conversion tool