Free and open source application that will help you resize and convert images
Version: 1.0JRezz is a small stand-alone no-install Java Swing utility to batch resample/resize or convert digital images.
Operating System: Mac OS X
Supported output formats are BMP, GIF, JPEG, PNG, WBMP and supported input formats are BMP, GIF, JPEG, JPG, PNG, WBMP.
NOTE: JRezz is licensed and distributed under the terms of the Apache License V2.0.