7-Zip (64-bit) 9.25 Alpha

4.7 out of 5 stars 4.7 (395 votes)

ALPHA (September 16, 2011)

Windows 2003/Vista/XP / Open Source / 64,555 downloads

7-Zip is a file archiver with the high compression ratio. The program supports 7z, ZIP, CAB, RAR, ARJ, LZH, CHM, GZIP, BZIP2, Z, TAR, CPIO, RPM and DEB formats. Compression ratio in the new 7z format is 30-50% better than ratio in ZIP format.

  • Publisher

    Igor Pavlov

  • Homepage

    7-Zip

  • Latest Changes

    - LZMA decompression speed was improved

    - "compress and send to email" code was improved to support more email clients

    - New command "h" to calculate hash values CRC-32, CRC-64, SHA-256 or SHA-1 for files on disk

    - New -spf switch to store full file paths including drive letter to archive. If you use that switch with extract command, please check that file names in archive are correct

    - Some bugs were fixed

    - NOTE: New -spf switch feature is for testing only! That code is still under development. Please write about any bugs there. It stores full file paths to archive only if you specify these full paths in command

  • Other Versions

    7-Zip (32-bit)

Reviews

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Reviews of 7-Zip (64-bit)

  1. 5 out of 5 stars
    reddy.shyam

    Reviewing 9.25 Alpha (Oct 21, 2011)

    My default for couple of months now. Great freeware!

  2. 5 out of 5 stars
    jmmeaux

    Reviewing 9.23 Alpha (Oct 7, 2011)

    This is a really excellent compression utility! Very high quality and free

  3. 5 out of 5 stars
    bogbasic

    Reviewing 9.20 (Dec 7, 2010)

    Can unpack good-old unix .Z files - that's rare. Ultra-top quality.

  4. 5 out of 5 stars
    MonTemplar

    Reviewing 9.20 (Nov 20, 2010)

    Put simply, 7-Zip just plain works, does the job, doesn't get in your face. I used to use WinZip back in the day (before Window XP), but stopped using it after it succumbed to "upgrade-itis". I now use 7-Zip for all my archiving tasks, both at home and at work.

  5. 4 out of 5 stars
    bobad

    Reviewing 9.19 Beta (Nov 12, 2010)

    Of all the archivers, 7-Zip is my favorite. I especially like the portability, I really like the setup options, which allow registering file types and shell extensions, then un-registering them if you wish. All portable programs should work like this. It unarchives many file types, and has a very generous list of shell extensions. 7-Zip is not without fault,,, occasionally it encounters a multi-part RAR archive it will not extract, reporting it as "broken" or "corrupt" and I have to use WinRAR. 1 point off for that, but it's still my favorite.

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