AES Crypt is an advanced file encryption utility that integrates with the Windows shell or runs from the Linux command prompt to provide a simple, yet powerful, tool for encrypting files using

CipherShed is cross-platform; It is available for Windows, Mac OS X and GNU/Linux. Although, as packages for OS X and Linux do not exist, yet, users of those platforms will need to compile CipherShed.

FileVault can be used to encrypt the data of a Mac or iOS device. This standard form of encryption for the Mac can prevent devices from being used if they are lost or stolen.

GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880 (also known as PGP). GnuPG allows you to encrypt and sign your data and communications; it features a versatile

Programs for file encryption and secure file transfer.

Symantec Endpoint Encryption powered by PGP Technology provides strong full-disk and removable media encryption with robust management capabilities.

Vormetric Transparent Encryption from Thales eSecurity enables advanced file and volume level data at rest encryption, access control and data access audit logs for Linux, Windows and Unix.