7-Zip is a free software/open source file archiver designed originally for Microsoft Windows. 7-Zip operates primarily with the 7z archive format, as well as being able to read and write to several other archive formats. In operation a user can use the command line, graphical user interface or Windows shell integration. 7-Zip began in 2000 and is actively developed by Igor Pavlov. It is related to a cross-platform port, p7zip.

The main features of 7-Zip

* High compression ratio in new 7z format with LZMA compression
* Supported formats:
o Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
o Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS
* For ZIP and GZIP formats, 7-Zip provides a compression ratio that 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 69 languages

Compression ratio

We compared 7-Zip with some of the leading archivers.

– 7-Zip now can update solid .7z archives.
– 7-Zip now supports LZMA2 compression method.
– 7-Zip now supports XZ archives.
– 7-Zip now can unpack NTFS, FAT, VHD and MBR archives.
– 7-Zip now can unpack GZip, BZip2, LZMA, XZ and TAR archives from stdin.
– 7-Zip now can open/copy/compress disk images (like \\.\c:) from \\.\ folder.
– 7-Zip File Manager now doesn’t use temp files to open nested archives
stored without compression.
– New -scrc switch to calculate total CRC-32 during extracting / testing.
– New -scc{WIN|DOS|UTF-8} switch to specify charset for console input/output (default = DOS).
– Some bugs were fixed.

What’s new after 7-Zip 22.01:

• 7-Zip now can use new ARM64 filter for compression to 7z and xz archives. ARM64 filter can increase compression ratio for data containing executable files compiled for ARM64 (AArch64) architecture.
  Also 7-Zip now parses executable files (that have exe and dll filename extensions) before compressing, and it selects appropriate filter for each parsed file:
  • BCJ or BCJ2 filter for x86 executable files,
  • ARM64 filter for ARM64 executable files.
    Previous versions by default used x86 filter BCJ or BCJ2 for all exe/dll files.
• Default section size for BCJ2 filter was changed from 64 MiB to 240 MiB. It can increase compression ratio for executable files larger than 64 MiB.
• UDF: support was improved.
• cpio: support for hard links.
• Some changes and optimizations in WIM creation code.
• When new 7-Zip creates multivolume archive, 7-Zip keeps in open state only volumes that still can be changed. Previous versions kept all volumes in open state until the end of the archive creation.
• 7-Zip for Linux and macOS now can reduce the number of simultaneously open files, when 7-Zip opens, extracts or creates multivolume archive. It allows to avoid the failures for cases with big number of volumes, bacause there is a limitation for number of open files allowed for a single program in Linux and macOS.
• There are optimizations in code for 7-Zip’s context menu in Explorer: the speed of preparing of the menu showing was improved for cases when big number of files were selected by external program for context menu that contains 7-Zip menu commands.
• There are changes in code for the drag-and-drop operations to and from 7-Zip File Manager.
  And the drag-and-drop operation with right button of mouse now is supported for some cases.
• The bugs were fixed:
  • ZIP archives: if multithreaded zip compression was performed with more than one file to stdout stream (-so switch), 7-zip didn’t write “data descriptor” for some files.
  • ext4 archives: 7-Zip couldn’t correctly extract symbolic link to directory from ext4 archives.
  • HFS and APFS archives: 7-Zip incorrectly decoded uncompressed blocks (64 KiB) in compressed forks.
  • Some another bugs were fixed.

10-13-2019 – Added ISO7Z plugin support

• CCD/IMG – disc images created with CloneCD
• CDI – disc images created with DiscJuggler
• CHD (v4) – images used by MAME
• CSO
• CUE/BIN
• ECM – disc images compressed with ECM Tool
• GDI – Dreamcast Gigabyte disc images
• ISZ – disc images created with UltraISO
• MDS/MDF – disc images created with Alcohol 120%
• NRG – disc images created with Nero Burning ROM
• Zisofs compressed files

15 December 2021 – Update 7z manager theme…

(Silent Repack)

x86

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x64

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Other Download