Chinese Rewriter is a Mac OS X application which converts texts between Traditional and Simplified Chinese. New features in the version 2 include batch processing, Mac OS X application service support, and the ability to convert ID3 tags.
Chinese Rewriter can open Big 5 and GB encoded text files, which converts them between Traditional and Simplified Chinese. In version 2, it can also open and save UTF-8 encoded documents. Files can easily be opened by a simple drag-and-drop with the mouse.