LineBreak is a simple utility for Mac OS X that converts line breaks in text documents. It can convert to Mac, UNIX®, and Windows/DOS formats. It is written entirely in Cocoa and supports drag and drop from the Finder. LineBreak is a Universal Binary (works great on PPC and Intel Macs).
LineBreak is Free Software
LineBreak is licensed under the GNU GPL. This means that not only is LineBreak monetarily free, but the source code is made freely available as well.
This application rocks! Need to make a command file for Halo on the Mac? Use this to convert the .txt file to windows linefeeds. Good Soup!