A free file archiver for extremely high compression
7-Zip is a file archiver with a high compression ratio. 7-Zip works in Windows 11 / 10 / 8 / 7 / Vista / XP / 2022 / 2019 / 2016 / 2012 / 2008 / 2003 / 2000.
You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. And there is command line version for Linux and macOS.
Moved to GitHub.com/gdraheim/zziplib/
The ZZIPlib provides read access on ZIP-archives. The library uses only the patent-free compression-algorithms supported by Zlib. It provides functions that transparently access files being either real files or zipped files, both with the same filepath
The TclVfs project aims to provide an extension to the Tcl language which allows Virtual Filesystems to be built using Tcl scripts only. It is also a repository of such Tcl-implemented filesystems (metakit, zip, ftp, tar, http, webdav, namespace, url)