jZip is a powerful compression utility which allows you to create, extract and manipulate Zip, RAR, TAR, GZip, 7-Zip and other file archives. jZip sports an elegant, easy to use user interface. jZip is a free WinZip alternative.
7-Zip is a powerful file compression software package, capable of high compression ratios for any file format. 7Zip can compress and decompress over 30 types of files with encryption support in amazing speeds.
7 Zip is a file archiver with the highest compression ratio. The program supports 7z, ZIP, RAR, CAB, ARJ, LZH, CHM, CPIO, RPM, DEB, GZIP, BZIP2, Z and TAR formats. Compression ratio in the new 7z format is 30-50% better than ratio in ZIP format.
PST Compress and Compact from SysInfoTools is a powerful innovative tool, which is designed to compress large size PST files of MS Outlook without hampering the integrity of data.This tool supports ANSI and Unicode PST files and works flawlessly.
SPac combines both compression and encryption into the one product and utilizes a user-friendly interface to make manipulating your secure archives simple.
Xceed Zip for .NET is a 100% managed data compression and all-purpose file manipulation class library for .NET. It provides flexible zip, unzip, streaming, self-extracting and an innovative and extensible filesystem object model.
lARP64Free is your 1st choice for x64 software compression, providing all your 64 bit software with the best compression to reduce internet download times. lARP64Free is a technology that is based on lARP64, it is superfast and extremely easy to use.
Xceed Zip for .NET Compact Framework is a 100% managed zip, data compression and all-purpose file manipulation class library for mobile apps. It provides flexible zip, gzip, streaming, self-extracting and a unique extensible filesystem object model
CryptoPressStream is the most powerful streaming compression and encryption library for Delphi / C++ Builder. It provides an easy way to compress and encrypt files, streams, strings, buffers and blob fields.