thriftmac

Compression
category

iZip

Wizard takes you step by step through the archiving process, including naming, option for extra compression, password protection, level of encryption, and ability to store and share online at files.com.

Keka

Excellent file archiver compresses 7z, Zip, Tar, Gzip, Bzip2, DMG, ISO. It extracts RAR, 7z, Lzma, Zip, Tar, Gzip, Bzip2, ISO, EXE, CAB, PAX, ACE (PPC). Main compression core is p7zip (7-zip port).

Lightweight PDF

Compress PDFs by up to 90 per cent with a drag-and-drop interface that promises a balance between file size and quality. Protect your privacy by avoiding websites with similar functionality.

The Unarchiver

Decompress several different compression formats, including some of the obscure ones that OS X can’t handle. Interface fits in nicely with the Finder.