What is 7-Zip used for?

7-Zip, a file archiver for compressing and extracting files, with its source code on GitHub and the main project at 7-zip.org. It is a good fit for compressing files for storage or sharing and extracting downloaded archives.

Is 7-Zip open source?

Yes. 7-Zip is open source. Its source code is on GitHub at ip7z/7zip and is written mainly in C++.

Yes. 7-Zip is open source, so the software itself is free to use.

Can I self-host 7-Zip?

Yes. 7-Zip can be self-hosted on your own server or infrastructure; there is no official hosted version.

What are some alternatives to 7-Zip?

Similar open-source tools in the Productivity category include PowerToys, Ladybird and Files. SaaS products in the same category include AWNA, Diskbuddy and DisplayFusion.

Is 7-Zip actively maintained?

Yes. The most recent commit to 7-Zip was on 4 September 2026, and the latest release is 26.03, published on 4 September 2026. The project has 4k stars on GitHub.

7-Zip: open-source productivity

About 7-Zip

7-Zip is a file archiver used to compress files into archives and extract them again. The GitHub repository under the ip7z organization hosts the project's source code, written in C++, while the official website at 7-zip.org provides downloads and documentation.

7-Zip is free software that is widely used on Windows and also available for other platforms, and it is associated with its own 7z archive format in addition to reading and writing common formats such as ZIP and TAR. Version 26.03 is the latest release listed in the repository metadata.

Key features

File compression and extraction
Native 7z archive format
Support for common formats like ZIP and TAR
Open C++ codebase
Official site with downloads

Good fit for

→Compressing files for storage or sharing
→Extracting downloaded archives

Built with: C++
Tags: archiver; compression; 7z; zip; file-compression; cpp; utility; windows

7-Zip: questions and answers

What is 7-Zip used for?: 7-Zip, a file archiver for compressing and extracting files, with its source code on GitHub and the main project at 7-zip.org. It is a good fit for compressing files for storage or sharing and extracting downloaded archives.
Is 7-Zip open source?: Yes. 7-Zip is open source. Its source code is on GitHub at ip7z/7zip and is written mainly in C++.
Is 7-Zip free?: Yes. 7-Zip is open source, so the software itself is free to use.
Can I self-host 7-Zip?: Yes. 7-Zip can be self-hosted on your own server or infrastructure; there is no official hosted version.
What are some alternatives to 7-Zip?: Similar open-source tools in the Productivity category include PowerToys, Ladybird and Files. SaaS products in the same category include AWNA, Diskbuddy and DisplayFusion.
Is 7-Zip actively maintained?: Yes. The most recent commit to 7-Zip was on 4 September 2026, and the latest release is 26.03, published on 4 September 2026. The project has 4k stars on GitHub.