7-Zip
FreeA free, open-source file archiver for Windows with a high compression ratio and support for many archive formats.
About 7-Zip
7-Zip is a file archiver that creates and extracts archives. It uses its own 7z format, which compresses strongly, and it also handles ZIP, GZIP, BZIP2, TAR and WIM for writing, and a long list of other formats such as RAR, ISO and CAB for extraction.
The program offers a simple file manager window, shell integration through the right-click menu, AES-256 encryption for 7z and ZIP archives, and a command-line version for scripts. It has a reputation for being small, fast and free of bundled extras.
7-Zip suits anyone who needs to open, create or protect compressed files on Windows, from home users unpacking downloads to administrators scripting backups. Its interface looks dated, but the functionality is solid.
It is free to use, including in commercial settings, and is licensed mainly under the GNU LGPL. The official download here is for Windows. Because the download is small and has no installer extras, it is a common first program to install on a fresh Windows machine, and it works well alongside the built-in ZIP support.
A dependable default archiver. Take the download only from the official site, since lookalike sites exist.
Frequently asked
Is 7-Zip free?
Yes. It is free to use, including commercially, under mainly LGPL terms.
Does it need an account?
No.
Can it open RAR files?
It can extract RAR archives but does not create them.
Where does the download link go?
Directly to 7-zip.org or the official app store for your platform. PlanetSofts never rehosts installers or adds wrappers, and these links were last verified Oct 6, 2026.