macos

7-Zip: a file archiver with a high compression ratio. (Free app)

Hazem Abbas

23 Jul 2023 — 1 min read

7-Zip is free software with open source. The most of the code is under the GNU LGPL license. Some parts of the code are under the BSD 3-clause License. Also there is unRAR license restriction for some parts of the code. Read 7-Zip License information.

Features

High compression ratio in 7z format with LZMA and LZMA2 compression
Supported formats:
- Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
- Unpacking only: APFS, 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, VHDX, VMDK, XAR and Z.
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 87 languages

7z Format

7z is the new archive format, providing high compression ratio.

The main features of 7z format:

Open architecture
High compression ratio
Strong AES-256 encryption
Ability of using any compression, conversion or encryption method
Supporting files with sizes up to 16000000000 GB
Unicode file names
Solid compressing
Archive headers compressing

**LZMA is default and general compression method of 7z format. The main features of LZMA method:

High compression ratio
Variable dictionary size (up to 4 GB)
Compressing speed: about 2-8 MB/s on 4 GHz CPU (2 cpu threads version).
Decompressing speed: about 30-100 MB/s on 4 GHz CPU (1 cpu thread).
Small memory requirements for decompressing (depend from dictionary size)
Small code size for decompressing: about 5 KB

Platforms

macOS (m64 / x86-64) Windows, Linux

License

7-Zip License

Resources

Homepage and Download

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