7-Zip

7-Zip is a file compression software with a compression ratio 2-10% higher than PKZip and WinZip. It supports any computer, even those used in commercial settings. 7-Zip uses AES-256 encryption to ensure file security. It includes a feature-rich file manager, a command-line version, and a FAR manager plugin, and features self-extracting capabilities for worry-free use. Furthermore, it supports localization in 87 languages, allowing you to use it in virtually any language!

Features

Utilizes LZMA and LZMA2 algorithms in the 7z format, offering extremely high compression ratios.

Supports a wide range of formats:

Compression/Decompression: 7z, XZ, BZIP2, GZIP, TAR, ZIP, and WIM

Decompression 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, Z, and ZSTD

Why Choose 7-Zip?

Compared to ZIP and GZIP formats, 7-Zip offers 2-10% higher compression ratios than PKZip and WinZip.

Provides more robust AES-256 support for 7z and ZIP. Encryption algorithm

7z format supports creating self-extracting archives

Windows Explorer integration

Powerful file manager

Powerful command-line version

Supports FAR Manager plugin

Supports 87 languages

Differences between 7z, 7za, and 7zr binaries

7z uses a plugin to handle archive files.

7za is a standalone executable that supports fewer archive formats than 7z.

7zr is also a standalone executable. It's a "lightweight version" of 7za, only supporting 7z compressed files. Unlike 7za, it cannot handle encrypted compressed files.

FAQs

Can I use 7-Zip in a business setting?

Yes, 7-Zip is free software. You can use it on any computer. You don't need to register or pay to use 7-Zip.

How do I set file associations for 7-Zip in Windows 7 and Windows Vista?

You must run 7-Zip File Manager as administrator. Right-click the 7-Zip File Manager icon and click "Run as administrator." After that, you can change file associations and some other options.

Why are 7z archives created by newer versions of 7-Zip larger than those created by older versions?

Newer versions of 7-Zip (starting from version 15.06) use a different file sorting order for complete 7z archives by default.

Older versions of 7-Zip (prior to version 15.06) use "By type" ("By extension") to sort files.

Why can't 7-Zip open some ZIP archives?

In 99% of cases, this means the archive's header information is incorrect. Other ZIP programs can open archives with incorrect header information because they ignore the error.

If you have such an archive, do not contact the developers of 7-Zip. Instead, try to find the program that created the archive and inform its developers that their software is incompatible with the ZIP format.

Some ZIP archives use encoding methods that 7-Zip does not support, such as WAVPack (WinZip).

Why can't 7-Zip open some RAR archives?

7-Zip 9.20 only supports RAR 2/3/4 formats and does not support RAR5 archives. However, the latest version of 7-Zip supports RAR5 archives.

Summary

Its graphical user interface is slightly dated, but it's fully functional and runs smoothly. Although it's a Win32 program and can still run on 24-year-old Windows systems, its support for user interface localization is excellent. Behind its clean interface lies a powerful backend that can easily make full use of your multi-core CPU. Isn't that a remarkable achievement?