A file archiver with a high compression ratio
Download 7-Zip
Latest stable version: 24.05
Free file archiver utility for Windows
Recommended for most users
Features of 7-Zip
Archiving & Compression
- High compression ratio in 7z format with LZMA and LZMA2 compression
- Supported formats: 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, 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
Additional Features
- Powerful command line version
- Plugin for FAR Manager
- Localizations for 87 languages
- 7-Zip is free software with open source
- 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
Compression Ratio Results
| Program | 7z | zip | rar |
|---|---|---|---|
| 7-Zip | 100% | 100% | - |
| WinRAR | 83% | 99% | 100% |
| WinZip | 82% | 99% | - |
Results are based on compression of "Silesia corpus" files. Lower value means better compression.
License
7-Zip is free software with open source. 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.
You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip.
Read Full License Information →Quick Links
System Requirements
- OS: Windows 10 / 11 / Server 2016 / Server 2019 / Server 2022 / Server 2025
- OS (32-bit): Windows 7 SP1 / 8 / 10 / 11 / Server 2008 R2 SP1 / Server 2012 / Server 2012 R2 / Server 2016 / Server 2019 / Server 2022 / Server 2025
- RAM: 256 MB minimum (1 GB recommended)
- Disk Space: 50 MB free space