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7-Zip (also written as 7zip) is a free, open source (under GNU LGPL license) file archiver for Microsoft® Windows®. It is one of the best, free file archivers that comes with a high compression ratio. The default archive format is 7z but it works (read and write) other popular archive formats. You can use the program in three ways: from its graphical user interface (most popular), a command line interface or as a shell integration. The default 7z file format offers one of the highest compression ratio (using LZMA and LZMA2 - Lempel–Ziv–Markov chain algorithm an algorithm used for lossless data compression) that's why this app is probably the most popular free file archiver.
Features of 7-Zip
- High compression ratio in 7z format with LZMA and LZMA2 compression
- 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.
- 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
Download:
Download 7-Zip Windows Installer 32-bit x86 - 1.13 MB
Download 7-Zip Windows Installer 64-bit x64 - 1.37 MB