VeraCrypt is a source-available freeware utility used for on-the-fly encryption. It can create a virtual encrypted disk within a file or encrypt a partition or the entire storage device with pre-boot authentication. VeraCrypt is a fork of the discontinued TrueCrypt project. It was initially released on June 22, 2013. According to its developers, security improvements have been implemented and issues raised by the initial TrueCrypt code audit have been addressed.

GnuPG is a GPL-licensed alternative to the PGP suite of cryptographic software. GnuPG is compliant with RFC 4880, which is the current IETF standards track specification of OpenPGP. Current versions of PGP (and Veridis' Filecrypt) are interoperable with GnuPG and other OpenPGP-compliant systems. GnuPG is a part of the Free Software Foundation's GNU software project, and has received major funding from the German government.

7-Zip is a free and open-source file archiver, a utility used to place groups of files within compressed containers. On Linux, MacOS etc. the command-line tool p7zip is used and integrates into various interfaces such as FileRoller, Xarchiver, Ark.