iPackr is a free yet very powerful Mac OS X app that will allow you to manage compressed archives with ease.
iPackr helps you compress your files as 7z and zip archives and to dcompress 7z, zip, rar, gz and bz2 archives.
NOTE: iPackr can only be downloaded via the Mac App Store (the download link will launch its App Store page). To purchase/download applications via the App Store an Apple account is required.
Here are some key features of "iPackr":
· Superb speed benefited by 64-bit computing power
· Full support of international file names (especially Chinese, Japanese and Korean file names created by old archivers)
· Full support of drag and drop
· Multi-volumed archives support
· Search file names inside archives with fancy highlight effect