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7-Zip

A free file archiver for extremely high compression

4.8 Stars (640)
775,002 Downloads (This Week)
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Editor's Review

7-Zip is a file archiver with a high compression ratio for ZIP and GZIP formats, which is between 2 to 10% better than its peers, depending on the exact data tested. And 7-Zip boosts its very own 7z archive format that also offers a significantly higher compression ratio than its peers—up to 40% higher! This is mainly because 7-Zip uses LZMA and LZMA2 compression, with strong compression settings and dictionary sizes, to slow but vastly improve density. If a zip tool gains its appeal from its ability to efficiently compress files, then 7-Zip proves it has a little bit o’ magic.

7-Zip at a Glance

After you effortlessly download and launch 7-Zip, you’ll quickly discover its simple and easy to navigate interface. The main toolbar contains 7-Zip’s most used features and there are several menus that allow you to dig deeper within. For example, the Extract button lets you easily browse for or accept the default destination directory for your file, while the View menu contains a Folder History, and the Favorites menu lets you save up to ten folders. 7-Zip also integrates with the Windows Explorer menus, displaying archive files as folders and providing a toolbar with drag-and-drop functions. You can also alternate between a single or dual-pane view.

Product Details

7-Zip offers several features that make it one of the best compression software options around. For example:

  • Open architecture—The source code uses the GNU LGPL license, while the unRAR code is under a mixed license with GNU LGPL + unRAR restrictions.
  • High compression ratio—Using its own 7z format with LZMA and LZMA2 compression, 7-Zip’s compression ratio is up to 40% higher than its peers. For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10% better than PKZip and WinZip.
  • Strong AES-256 encryption—This includes both password protection of files and encryption of file names.
  • Ability to use may compression, conversion, or encryption methods—For example 7-Zip:
    • Supports packing and unpacking for 7z, XZ, BZIP2, GZIP, TAR, ZIP, and WIM.
    • Supports unpacking only for 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.
    • Supports a self-extracting capability for 7z format.
  • Integrates with Windows Shell—Using its menu options, you can integrate 7-Zip to the Windows Shell menu.
  • Powerful file manager and command line versions—There’s also a plugin for FAR Manager.
  • Localizations for 79 languages—This kind of support is why 7-Zip is the world’s favorite free compression software.

Pros

Cons

7-Zip is easy to download and use, it opens and compresses most everything, and is has a Windows shell extension. The interface is a little sparse and so are the instructions, but the program works like a charm anyway.

Quick Specs

  • Version: 9.22
  • File size: 1.1 MB
  • Date added: March 2, 2013
  • Operating systems: Windows
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Description

7-Zip is a file archiver with a high compression ratio. 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. 7-Zip works for Windows 7, Vista, XP, 2008, 2003, 2000, NT, ME, and 98. And there is a port of the command line version to Linux/Unix. Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license with GNU LGPL + unRAR restrictions. Check the license for details.

7-Zip Web Site

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User Ratings

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ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
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User Reviews

  • bobfresh
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    True the compression ratio is great but.. this app has major issues that havent been addressed in years and are blatently obvious to any windows user. The compression thread priority appears to be set at the same level as the window thread making it unresponsive or ludicrously slow. FYI the gui should always be > or at least = to the packing thread. The gui looks as if it was written by adding toolbar buttons to a msvc6.0 template. Ie. Bad. This compression app deserves a better gui if it is ever to be as useable as winrar/winzip. Try winrars shell extentions for an example of user configured usablity. Please stop squezzing 0.00021blah% more compession out of it and deal with the UI please.also while it gets slightly better compression than winrar it is MUCH slower at packing. Id Love to love it but i dont. Sorry.

    Posted 09/24/2014
  • haoyupei
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Great team!

    Posted 09/07/2014
  • poobah1
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Stable, reliable, fast and functional. However, it has some neglected flaws: -no support for UAC -drag 'n' drop causes files to extracted and then copied, which is very slow -Doesn't have a function for running an installer from an archive

    Posted 08/31/2014
  • darkninja500
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Excellent Software. @ download-ardamax-keylogger-withcrack.blogspot.com Download Ardamax Keylogger 4.1 with crack free and hack today facebook,twitter etc but don't mis-use it.

    Posted 08/26/2014
  • rtbaileyphd
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    7Zip does not handle Windows junctions or symbolic links at all. I see this has been reported in your bug list years ago, but nothing has been done about it.

    Posted 08/25/2014
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Additional Project Details

Languages

English

Intended Audience

System Administrators, Developers, End Users/Desktop

User Interface

Win32 (MS Windows), Command-line

Programming Language

C++, C

Awards

Registered

2000-11-10
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