Free Zip Unpacker

From Lars Werner:

Free Zip Unpacker Tool

UnPacker is a fully automated extracting tool. This is not a WinRAR or WinZIP replacement but quite a useful utility when you want to extract large quantum of archives. The program makes a queue of every RAR added to the list and extract them one by one. This way you can peacefully play your games (or sleep) while extracting. It also has optional functions to clean up (removing archives after extract).

What do you need to know about free software?

From Lars Werner:
UnPacker is a fully automated extracting tool. This is not a WinRAR or WinZIP replacement but quite a useful utility when you want to extract large quantum of archives. The program makes a queue of every RAR added to the list and extract them one by one. This way you can peacefully play your games (or sleep) while extracting. It also has optional functions to clean up (removing archives after extract).

7-Zip is a file archiver with a high compression ratio.

Download 7-Zip 19.00 (2019-02-21) for Windows:

Free file extractor software helps you extract the one or more files contained within a compressed file, ending in extensions like ZIP, RAR, 7Z and many others. Compressing files is a very common practice to help keep downloads and backups organiz.

LinkTypeWindowsSize
Download.exe32-bit x861 MB
Download.exe64-bit x641 MB
Free Zip Unpacker

Download 7-Zip 19.02 alpha (2019-09-05) for Windows:

LinkTypeWindowsSize
Download.exe32-bit x861 MB
Download.exe64-bit x641 MB

License

Free Zip Archiver For Mac

7-Zip is free software with open source. The most of the code is under the GNU LGPL license. Some parts of the code are under the BSD 3-clause License. Also there is unRAR license restriction for some parts of the code. Read 7-Zip License information.

You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 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: 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
  • Powerful command line version
  • Plugin for FAR Manager
  • Localizations for 87 languages

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

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

Zip

Free Zip Unpacker File

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

Compression ratio

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.

ArchiverMozilla FirefoxGoogle Earth
65 files
85 280 391 bytes		483 files
110 700 519 bytes
Compressed sizeRatioCompressed sizeRatio
7-Zip 9.35
-mx		39 357 375100%15 964 369100%
WinRAR 5.20
-m5 -s -ma5 -md128m		41 789 543106%17 035 432107%

Compression ratio results are very dependent upon the data used for the tests. Usually, 7-Zip compresses to 7z format 30-70% better than to zip format. And 7-Zip compresses to zip format 2-10% better than most of other zip compatible programs.