BWAINcrypt for DOS. An older, well tested encrypter. Inconvenient for those who are not comfortable with DOS.
BWAINcrypt applet for Java 1.1 virtual machines and above. A more convenient encrypter, it has a GUI and can work with copy and paste.
BWAINcrypt applet for Java 1.2 virtual machines and above. I might make this sometime. I think a lot of browsers still only have Java 1.1 virtual machines.