It uses the official unrar system internally for full compatability with WinRAR, and includes support for expanding multi-volume and password-protected RAR archives. It also supports AppleScript and includes example scripts for easily expanding multiple RAR archives at once.

RAR Expander is a MacOSX program which extracts the files contained in RAR archives. It supports both single and multi-part archives, and has support for password-protected archives as well. It uses the official unRAR library internally so it is fully compatible with archives produced by WinRAR. Learn more.