7-Zip
6.2#3 in file encryption softwareFree planFree planLinuxmacOSWindows
Visit7-Zip suits people who need one free archiver across Windows, Linux, and macOS. It also fits users who need encryption, command-line operation, portable use, archive repair, or developer resources for LZMA compression.
Gpg4win suits Windows users who want file or email encryption with Outlook integration. Its documentation, source code, and community resources may also help users looking for project materials or ways to contribute.