ISC lets you encrypt & decrypt text and files of any type up to 4GB
xxteac - XXTEA Encrypter/Decrypter
Sending encrypted data through internet web applications.
Simple, lightweight, standalone command-line single file encryption.
A console-mode program that will keep all your passwords safe
jEncrypt is a command line file encryption archiver
AES-128, Linux, OpenBSD, Assembly-Language
Simple and easy to use Java application to encrypt your files