7-Zip 24.08 – Free File Archiver
7-Zip is an open source file archiver with the high compression ratio predominantly for the Microsoft Windows operating system.
It operates either as a command line program or with a graphical user interface. It also features integration with the Windows shell environment.
Compression ratio results are very dependent upon the data used for the tests. Usually, 7-Zip compresses to 7z format 30-70% better than to zip format. And it compresses to zip format 2-10% better than most of other zip compatible programs.
7-Zip is free software, developed by Igor Pavlov and distributed under the GNU LGPL license. This file archiver works on all Windows operating systems, from Windows NT to 10 (32-bit and 64-bit).
The main features of 7-Zip:
- High compression ratio in new 7z format with LZMA compression and LZMA2 compression
- For ZIP and GZIP formats, the provided compression ratio is 2-10 % better than the ratio provided by PKZip and WinZip
- Strong AES-256 encryption in 7z and ZIP formats
- Self-extracting capability for 7z format
- Integration with Windows Shell
- Powerful File Manager
- Powerful command line version
- Plugin for FAR Manager
- Localizations for 87 languages
- Supported formats:
- Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
- Unpacking only: 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.
Changes in 7-Zip 24.08 (2024-08-12):
- The bug in version 24.00-24.07 was fixed:
For creating a zip archive: The app could write extra zero bytes after the end of the archive, if a file included to archive cannot be compressed to a size smaller than original.
The created zip archive is correct except for the useless zero bytes after the end of the archive.
When unpacking such a zip archive, the app displays a warning:
“WARNING: There are data after the end of archive”. - The bug was fixed: there was a leak of GDI objects (internal resources in Windows) in “Confirm File Replace” window, causing problems after 1600 displays of “Confirm File Replace” window from same running 7-Zip process.
- Some optimizations for displaying file icons in app File Manager and in “Confirm File Replace” window.
- Some bugs were fixed.
Changes in 7-Zip 24.07 (2024-06-19):
- The bug was fixed: The app could not unpack some ZSTD archives.
Changes in 7-Zip 24.05 (2024-05-15):
- New switch -myv={MMNN} to set decoder compatibility version for 7z archive creating.
{MMNN} is 4-digit number that represents the version of the app without a dot.
If -myv={MMNN} switch is specified, the appwill only use compression methods that can be decoded by the specified version {MMNN} of the app and newer versions.
If -myv={MMNN} switch is not specified, -myv=2300 is used, and the app will only use compression methods that can be decoded by the app 23.00 and newer versions. - New switch -myfa={FilterID} to allow the app to use the specified filter method for 7z archive creating.
- New switch -myfd={FilterID} to disallow the app to use the specified filter method for 7z archive creating.
- Some bugs were fixed.
Homepage – https://www.7-zip.org
Supported Operating Systems:
- Windows XP, Vista, 7, 8, 8.1, 10, 11 (32-bit, 64-bit).
- Windows Server 2003, 2008, 2012, 2016, 2019.
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