7-Zip is an open-source file archiver with a 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 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 22.00 (2022-06-15):
- 7-Zip now can extract APFS (Apple File System) images that can be used in DMG files.
- 7-Zip now can create TAR archives in POSIX (pax) tar format with the switches
- -ttar -mm=pax or -ttar -mm=posix
- 7-Zip now can store additional file timestamps with high precision (1 ns in Linux) in tar/pax archives with the following switches:
- -ttar -mm=pax -mtp=3 -mtc -mta
- New switches for Linux version for TAR archives:
- -no: store owner/group ids in the archive or set owner/group ids from the archive to extracted files.
- -soon: store owner/group names in the archive
- New -snz switch to propagate Zone.Identifier stream to extracted files (Windows).
- New option “Propagate Zone. Id stream” in Tools/Options/7-Zip menu.
- The new “Options” window in “Add to archive” allows selecting what metadata must be included to archive. Also, it allows selecting a new option
- “Do not change source files last access time”.
- Some bugs were fixed.
Homepage – https://www.7-zip.org
Supported Operating Systems: