7-Zip

7-Zip is a high compression ratio file archiver. It is open-source free software. Anyone can utilize it on their computers. You are even able to utilize the 7-Zip software on commercial computers and you won't require to pay a penny. There are many different versions of 7-\Zip such as The 2019 windows version 7-Zip 19.00 and the 2021 version for windows is 7-Zip 21.03 beta. You can download both of these in different windows such as 64 bit ×64, 32 bit ×86. The 21.03 beta can also be downloaded in 64 bit ARM 64.

License Information

Most of the Zip codes are under the license of GNU LGPL. While some of the portions of codes are under the BSD-3 clause license and u RAR license. Before downloading the 7-Zip file you should read the license information for 7-Zip. According to the GNU LGPL license, you can redistribute or modify the code following the norms of the GNU Lesser General Public.

The unRAR license shows you that the license is owned for the 7-Zip code and it can't be utilized to recreate the other compression algorithms.

The main features of 7-Zip

7-Zip has a high compression ratio in 7z format.

The 7-Zip supports a wide variety of formats unpacking and packing formats include 7z, TAR, WIM, ZIP, GZIP, BZIP2, and XZ. The unpacking formats include AR, ARJ, CPIO, CHD, RAR, MSI, etc.

Among all these formats the 7z format 7-Zip has self-extracting capacity. It is the open version so it can support all new methods of compression. It is a part of the 7-Zip program under the GNU LGPL distributers.

There are different methods of compression that are integrated into 7z format such as 7ZMA, 7ZMA2, PPMD, BCJ, BCJ2, etc. Among these, the 7ZMA is the default compression method used in 7z format. It has a variable dictionary size of up to 4 Mb and a compression speed of nearly 1 Mb per sec on a 2 GHz CPU. The decompressing speed of the same method is nearly 10-20 MB per sec on a 2 GHz CPU.

The 7-Zip provides a 2-10% assuring compression ratio for the ZIP AND GZIP formats in comparison to PKZip and WinZip. The other features of the 7-Zip Include that it can integrate with the windows shell. It has strong file managing and command-line versions. It has a plugin for the FAR manager and also has localization for about 87 languages.

The different versions of Windows support the 7-Zip including windows 10, windows 7, windows 8, windows vista, windows XP, 2019 windows, windows of 2012, windows 2008, windows 2003, and Windows 2000.

The quick port of the common line versions 7z.exe and 7az.exe to Linux and POSIX are possible through pZip. All the bug reports and related queries, feature request system, and forums can be found on 7 Zip's Source forge page.

• 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: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, 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
• Plugin for FAR Manager
• Localizations for 87 languages

7-Zip works in Windows 10 / 8 / 7 / Vista / XP / 2019 / 2016 / 2012 / 2008 / 2003 / 2000.

p7zip - the port of the command line version of 7-Zip to Linux/Posix.

On 7-Zip's SourceForge Page you can find a forum, bug reports, and feature request systems.

Compression ratio

When the compression ratio of 7-Zip is compared with the Win RAR 5 you can see various results are observed based on the different tests. The compression of the 7- Zip file to the 7z format is 30 % - 70 % more reasonable than the zip format.

A similar positive ratio is seen in the case of zip format. The compression of the 7-zip to zip format is 2 % - 10 % more reasonable when compared to other zip programs.

We compared 7-Zip with WinRAR 5.20.

FILE SETS: Mozilla Firefox 34.0.5 for Windows and Google Earth 6.2.2.6613 for Windows.

7-Zip 21.03	2021-07-20
7-Zip 21.03 beta

7-Zip 21.02	2021-05-06
7-Zip 21.02 alpha

7-Zip 21.01	2021-03-09
7-Zip 21.01 alpha

7-Zip 21.01	2021-03-09
7-Zip for Linux

7-Zip 21.00	2021-01-19
7-Zip 21.00 alpha

7-Zip for ARM64	2020-08-08
7-Zip for ARM64

7-Zip 19.00	2019-02-21
7-Zip 19.00

7-Zip ChangeLog
History of 7-zip changes