We've all heard of WinZip, but Unlike WinZip or WinRar, 7-Zip download is 100% Free and does not require registration. 7 Zip is the best free file compression utility. Zip files, Unzip files, Secure 256-Bit Encryption, 7-Zip does it all and unlike other software its 100% free. Download 7-Zip Free.
7-Zip is a very powerful file archiver. Compression Ratio results are dependent on the data used for the tests. 7-Zip Compresses to 7z format 30-70% faster than to Zip format. 7-Zip also compresses to Zip format up to 10% more than most other Zip applications.
7-Zip is not only free but is also packed full of features.
Zip files, Unzip files, Encrypt, Backup files and much more. 7-Zip can do it all. With Compressing speeds at around 1MB per second, and Decompressing speeds around 20MB per second 7zip is also the most powerful free file compression utility available.
7-Zip supports many features, including: self-extracting capabilities, Powerful command line version, Plugin for FAR Manager, Integration with Windows Shell, Powerful File Manager, Strong AES-256 encryption in 7z and ZIP formats, Multiple CPU / Core / threading settings and the list goes on.
7-Zip unpacks a host of archive formats including 7z, ZIP, GZIP, BZIP2, TAR, GZ, ISO, RAR, ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, LZH, LZMA, MSI, NSIS, RPM, UDF, WIM and XAR.
For encryption, 7zip offers 256-bit AES cipher Encryption which can be enabled for both files and the 7z directory structure. When the directory structure is encrypted, users are required to supply a password to see the filenames contained within the archive.