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7-Zip

A free file archiver for extremely high compression

4.8 Stars (746)
29,271 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
  • 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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695
15
9
3
24
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 4 / 5
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User Reviews

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

    Good option to winzip and winrar

    Posted 09/26/2017
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Very efficient and effective tool for creating and extracting archives (zip). It is very easy to use through simple UI and context menu options (right-click menu). Though the UI is not as colorful or explanatory as some archiving programs, its speed (near instant start up and archiving) and ease of use well makes up for that. This is definitely the best archiving program around! The only disadvantage of 7zip (and why i do not give it 5 stars) is that (as of v 9.2.0) if you modify an archived file and are not in the same directory as the file (when you save it) the program crashes (and you loose the modifications you made to the file, which has cost me some time). Also if you delete files in 7zip they do not go to the trash but are deleted permanently. But these two are both very rarely problematic and so i highly recommend this program.

    Posted 08/23/2017
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    7-Zip is an awesome program to find and run things by. It merges Explorer and Finder. It can open nearly all folders of every type. It needs to find a way to open .text files, just as other hidden content. It would also be great to configure selected files with Notepad++. Besides that, it does awesome.

    Posted 04/21/2017
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I like 7-zip a lot, but here's a feature request: I just zipped a big folder, and the process used up 98% of my dual-quad-core CPU time, bringing the rest of my laptop to a screeching halt. I don't see any way of throttling the process, so that would be helpful. Thanks!

    Posted 02/20/2017
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I'm a huge fan of 7z. Good compression ratio and easy to use. One bummer is though, the poor mac support, or rather the lack thereof. I could get my hands on the command line version for mac, but it's compiled by somebody else, so is it outdated or not? (Another bummer is that I need an .so file on Mac. When called with full pathname, that .so works. For my own easy I placed 7z in a path dir, but that did not work the way it should. It can then not find the path any more). Not much of a problem for a command line user like me (since archiving on Mac through the GUI has never been worked out the way it should, no matter which archiver you have) :)

    Posted 07/18/2015
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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

Registered

2000-11-10

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