7-Zip
Free, open-source file archiver with a high compression ratio and its own 7z format.
Last verified: October 2, 2026
Official links
Links go directly to the developer, publisher or authorized store. Welcome Free Tools does not host any files. Official domain: 7-zip.org
Overview
7-Zip is a file archiver created by Igor Pavlov. It is free to use, including in commercial settings, and most of its source code is released under the GNU LGPL licence. The main graphical version is for Windows.
7-Zip compresses files into archives and extracts them again. Its own 7z format offers a high compression ratio, and it can also create ZIP and several other archive types. For extraction it supports many additional formats, including RAR, TAR and ISO files. Archives in the 7z and ZIP formats can be protected with AES-256 encryption, and 7-Zip integrates with the Windows Explorer context menu for quick access.
7-Zip is useful for anyone who regularly receives compressed files or wants to reduce the size of folders before sharing or backing them up. The official website, 7-zip.org, is the only place you should download it from, because fake copies of popular utilities are often distributed elsewhere.
Features
- High-compression 7z format
- Creates ZIP and other archive formats
- Extracts many formats including RAR, TAR and ISO
- AES-256 encryption for 7z and ZIP archives
- Windows Explorer context menu integration
Questions and answers
What is 7-Zip?
Free, open-source file archiver with a high compression ratio and its own 7z format. It is developed by Igor Pavlov.
Is 7-Zip free?
7-Zip is listed as: Free & Open Source. Whether optional purchases exist has not been verified yet. Pricing can change, so confirm on the official source.
Is 7-Zip available on Android?
Android is not among the platforms listed for 7-Zip. Listed platforms: Windows.
Does 7-Zip have a Windows version?
Yes, Windows is a listed platform.
Where is the official 7-Zip website?
The official website is https://www.7-zip.org/ (official source verified on October 2, 2026).
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