7Zip is an open source archiving utility currently supporting only Windows platform. It fully supports 7z, ZIP, GZIP, BZIP2 and TAR formats.

B1 Free Archiver is a multi-platform file archiver and file manager.

BetterZip is a trialware file archiver and data compression utility.

Archive Manager (File Roller) is the archive manager of the GNOME desktop environment.

FreeArc is a free and open source file archiver.

IZArc is a utility that will decompress tons formats like ZIP and RAR.

7z SFX-Creator is a windows GUI for creating self-extracting (*.exe) files from 7zip archives (*.7z).

Bandizip is a free Zip Archiver. It extracts the most popular compression formats, including Zip, ZipX, 7z, and RAR files.

Bitser is free Windows software for managing archives and backups. It supports ZIP, 7Z, RAR, ISO, MSI, VHD, GZIP, BZIP2,TAR, LZMA, LZMA2,etc.

FileOptimizer is an advanced file optimizer featuring a lossless (no quality loss) file size reduction.

FreeCommander is a freeware file manager with built-in FTP client, archive handling, multi-rename, wipe files and MD5 checksums.

Keka is a full featured file archiver, as easy as it can be. With Keka you can compress as many files as you want in a bunch of formats.