PeaZip

 PeaZip

Free Zip files utility, free Rar files extractor

Compress, convert, split, encrypt, secure delete

Open RAR TAR 7Z ZIP ZIPX files, 150+ formats supported

Supported systems: Windows 9x, Windows NT/2K/XP,
Windows Vista/7/8 (32 and 64 bit), ReactOS, Wine

jZip

Software Features

Create Zip compatible files

Unzip any Zip file archives

Supports other archive formats like TAR, GZip & RAR

Improved compression ratio

Fast compression engine

Best

Best free zip program for Windows
                    Though there are many free zip programs available for windows, one of the simplest and easiest to use is Bitser. Bitser has been created as an alternative to the non-free zip programs WinZip and WinRAR. It has been designed to allow you to easily create or extract zip files using a Windows Explorer style interface which is familiar to most users.

7-Zip

The main features of 7-Zip

• High compression ratio in 7z format with LZMA and LZMA2 compression
• Supported formats:
  • Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
  • Unpacking only: ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR and Z.
• For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
• Strong AES-256 encryption in 7z and ZIP formats
• Self-extracting capability for 7z format
• Integration with Windows Shell
• Powerful File Manager
• Powerful command line version
• Plugin for FAR Manager
• Localizations for 79 languages

7-Zip works in Windows 7 / Vista / XP / 2008 / 2003 / 2000 / NT / ME / 98. There is a port of the command line version to Linux/Unix.

Link : http://www.7-zip.org/