7-Zip is a file archiver with a high compression ratio.
7-Zip vs WinZip opinions
7-Zip is highly efficient, open source archiver.
PeaZip is free file archiver utility, based on Open Source technologies of 7-Zip, p7zip, FreeArc, PAQ, and PEA projects, for Linux, macOS and Windows.
PeaZip vs WinZip opinions
Has all features of 7zip and most of features of WinRAR. And it has a GUI.
Bandizip is a powerful archiver which provides an ultrafast processing speed and convenient features. Available free of charge, and its paid editions support a variety of advanced features.
Bandizip vs WinZip opinions
Really Strong ! and free On all my computers !
The Unarchiver is a small and easy to use program that can unarchive many different kinds of archive files. It will open common formats such as Zip, RAR (including v5), 7-zip, Tar, Gzip and Bzip2. It will also open many older formats, such as StuffIt, DiskDoubler, LZH, ARJ and...
p7zip is a port of the command line version of the 7-Zip file archiver to POSIX-conforming operating systems like Unix (Linux, Solaris, OpenBSD, FreeBSD, Cygwin, AIX, ...), MacOS X and also for BeOS and Amiga.
FreeArc is a free and open source file archiver developed by Bulat Ziganshin. It uses LZMA, PPMD, TrueAudio and GRzip algorithms with automatic switching by file type, and also uses set of filters—for instance it can remove repetitions from text.Discontinued
Latest alpha version from August 2012 - http://freearc.org/history/changelog_full.htm
NanaZip is an open source file archiver intended for the modern Windows experience, forked from the source code of well-known open source file archiver 7-Zip 21.03.
File Roller is the archive manager of the GNOME desktop environment. It can extract, view, create and modify archives. File Roller is only a graphical interface to archiving utilities such as tar and zip.
Ark is a program for viewing, extracting, creating and modifying archives. Ark can handle various archive formats such as tar, gzip, bzip2, zip, rar, 7zip, xz, rpm, cab and deb (support for certain archive formats depend on the appropriate command-line programs being installed).