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A free file archiver for extremely high compression

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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 3 / 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

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

    The range of features and compression capability is out of question, also it is under 2 MB after installation so 7zip is just a MUST. However, developers here are just doing what they want without listening to features required by users (In my opinion that's the reason why other zip utilities are more popular), I imagine they spending nights for gaining 1% compression rate wihtou increasing usability (seriously, I can't imagine why no one forked 7zip to redesign it a bit). Issues: 1) Most websites (95%) provide only Md5 and Sha-1 checksums (because are cheaper I guess), those checksums are not secure as Sha-256, but if 7zip does not provide any checksums for those websites then the result is that user cannot do checksum wich is totally safeless (seein developers answering "install a Md5 utility" is a bit irritating). Also if the excuse for not adding MD5 and SHa-1 is that they are not secure, then just remove CRC too (wich is redundant since downloads from TCP connections already have CRC at TCP protocol level). 2) Allow copypasting to clipboard of checksums of file manager for make comparing easy 3) File manager is obsolete, use native folder browsing for each OS, it is much faster reliable and also make possible to users make use of their shortcuts and settings (this is also a question of accessibility, what if someone is using bigger fonts because visually impaired while 7 zip file manager still have small fonts? that force him to use the magnifier). 4) Allow decompression of tar.gz at once with 1 command. How difficult is wrap 2 sequential commands as 1?

    Posted 10/07/2014
  • 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
  • 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
  • vahit28
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    This Tool Is A Legend Its Extreme Popular but Still Having Problems With Iso Files !

    Posted 03/14/2014
  • riverbach
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Amazing, 7-Zip even decompressed a 29 GB file which WinZip and WinRar were not able to do!

    Posted 01/06/2014