BinJuggler
Delivers screenshots and software for encoding and decoding MacBinary III files.
CleanArchiver
Archival software supports gzip, bzip2 and zip as well as compressed Disk Images.
DropDMG
Developer of drop Disk Image utility serves a user manual, press, screenshots, testimonials and software.
FreeDMG
Freeware compression tool offers drag-and-drop compression into UDZO or UDCO formats.
GUItar
Compression and archiving utility compresses files as tar, tgz, gz and bz2.
Iceberg
Allows users to create installation packages for Mac OS X.
MacPAR deLuxe
Fully supports par 1 and par 2 standards for Mac OS X 10.2 or later.
MacTar
The common file-packing format for Unix is available on Mac OS.
Pacifist and BootCD
CharlesSoft makes utilities for opening package files and creating disk images.
PackUpAndGo
Provides compression using Unix archiving utilities for use on Mac OS X.
Stuffit
Makers of Stuffit compression utility deliver product specs, software updates and more.
UnRARX
X Rar extraction utility for Mac OS X is a Cocoa application, which allows users to expand rar archives and restore corrupted archives using par2.
yEnc
Simple utility program decodes yEnc files, such as are used on Usenet newsgroups.