7-Zip's remit is simple: it compresses and decompresses files. With hard drives and SSDs now larger and cheaper than ever, you might well wonder just why such tools are still needed. Two key reasons are the internet (compressing files means they can be sent and received faster) and security (compressed files can be encrypted and password-protected).
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Currently I used 7-zip & there's a field/option to enter password to 'encrypt' the zipped files. I'm not sure if this is true 128-bit or 256-bit encryption that matches that of Truecrypt. Software name: User interface: License: Size: WinRAR x86 (32 bit) 5.61: Graphical and command line: Trial: 2897 KB: WinRAR x64 (64 bit) 5.61: Graphical and command line. 7-Zip for Mac System Tools › File Compression 7-Zip is a very popular archive manager that supports most of the popular compression formats. 7-Zip for Mac has not been developed by Igor Pavlov, yet. If the Mac’s built-in Archive utility just doesn’t have enough features for you, iZip is a walk through, step-by-step archive process which uses menus to give you options; create archives, add encryption and password, drag and drop files and folders. Mac Tools Too l Trucks – Own Your Own Automotive Tool Franchise and Be Your Own Boss™ In addition to manufacturing a wide variety of outstanding automotive tools, Mac Tools provides one of the best franchise opportunities available to qualified candidates with a passion for the automotive industry.
Where to download:http://www.7-zip.org
Type: File archiver
Developer:Igor Pavlov
Operating system: Windows, Linux (unofficial)
Version: 16
You can also make self-extracting compressed archives that you can send to others without having to worry about what software they have installed.
Whether you're looking to save space, secure data, or just back up your important data in an efficient manner, 7-Zip has all the bases covered.
7-Zip is free, fast and tiny. As well as the all-important Zip format, there's support for the creation of numerous other types of compressed file including 7z, BZIP2 and TAR.
Things are even more impressive when it comes to 7-Zip's decompression support; the list is seriously lengthy: 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.
The fact that ZIP and RAR files are covered is reason enough to install 7-Zip right away – everything else is a bonus. Compression rates in the program's native format are particularly impressive.
If you need to be able to work with anything other than regular zip files, 7-Zip is ideal for the job. A tool that easily falls under the heading 'essential'.
User experience
7-Zip can be used in two ways. The first option is to fire up the main program window and work with compressed files through the file manager. The second is to use the context menu, which gives you access to a key set of options by simply right-clicking on files.
7-Zip's file manager's interface is a little confusing. Unlike most compression tools, there's no option to create a new compressed archive and then add files to it. Instead, you have to begin by selecting the files and then then compress them.
7-Zip's various configurable settings are likely to be off-putting to a beginner. There's little, if anything, in the way of explanation for many of the options. That said, the default settings will work just fine for most people, and key options such as whether an archive should be password-protected or not are fairly self-explanatory.
A friendlier way to work with 7-Zip is to use the context menu. After you've selected one or more files in Windows, the right-click menu enables you to add them to a compressed archive in a few clicks. There are other options such as zipping files and adding them to an email which is a nice time-saver.
Latest updates
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The latest version of 7-Zip fixes some bugs in the RAR code, and corrects some errors that occurred when the program was installed on a PC running Windows Vista. For full details, see the official change list.
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I always miss 7-zip when I'm working on my Mac. Does anyone know of a good GUI utility that allows me to preview zip file contents and do partial extracts?
I've seen the Unarchiver and various 7-zip based tools like EZ 7z and 7zX but they don't have that. EZ 7z somewhat supports previews by opening a console window when you hit preview, but that's not what I am looking for.
closed as off-topic by teylyn, gronostaj, Breakthrough, Dave M, ChrisFAug 8 '13 at 22:13
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3 Answers
Zipeg is free. It allows you to view the file hierarchy without extracting any files. It automatically extracts all of the files in the currently viewed directory when that folder is opened, including the archive's root directory. This means that opening an archive and viewing different directories in it are expensive processes. It deletes these files when the viewed folder is changed or the archive is closed. It uses these temporary files to provide previews. It does not support creation of archives.
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BetterZip is $20, and people seem to love it. I don't think it's that good. It seems to support Previews by just extracting the entire archive to a temporary folder, but it does have a built-in preview pane that seems to support more than Preview.app does.
wfaulkwfaulkThis might help you out. It's a Quicklook plugin called BetterZip that allows you to view the contents of an archive by simply tapping space. It can preview the following archive formats: ZIP, TAR, GZip, BZip2, ARJ, LZH, ISO, CHM, CAB, CPIO, RAR, 7-Zip, DEB, RPM, StuffIt’s SIT, DiskDoubler, BinHex, and MacBinary.
The partial extract part unfortunately does not work, though. This is only good for previewing.
alexalexPacifist is a shareware app that lets you use the spacebar preview functyion (whatever it's called). It also lets you do partial extracvtions and works with .dmg .zip, .tar, .tar.gz, .tar.bz2, and .xar archives, but not 7z apparently. It has a trial mode, it just makes you wait before showing you the contents of the archive.
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