Encrypto - Encrypto lets you encrypt files before sending them to friends or coworkers.
EncFSMP - EncFSMP, a program to mount EncFS folders on Windows and OS X.
File Lock PEA - Password-encryption of files and directories. File PEA encrypts files and folders with authenticated encryption to protect confidentiality and integrity. The program uses memory-hard key derivation functions to prevent custom hardware attacks.
Unicode Crypter - Encrypt and Decrypt Unicode!
VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
WinGPG - WinGPG – an open source encryption tool for Windows