OhCrypt lets you easily encrypt and decrypt files using some of the most popular algorithms, like AES, Blowfish and Triple DES. With OhCrypt, you can secure your data with a password-based encryption algorithm through a clean and simple interface.

“Encrypted Notepad” does only one thing, but aims to do it perfectly – a Notepad-like simple text editor where files are saved (and later loaded) encrypted with industrial strength algorithms. Unencrypted data is never stored on-disk.

Tool for encrypting files using blowfish, aes, des or cast5, File hashing with md5, sha and ripemd160, compresssion with gzip, and a nice user interface. Created using C++ with Qt framework, depends on QCA third-part Qt Library and OpenSSL.

The mendelson OFTP2 is a JAVA-based open source OFTP2 solution. It contains a logging- and configuration GUI (SWING) and supports encryption, digital signatures, message compression, SSL

A free (as in beer) OpenSSL GUI for encrypting, decrypting and compressing files and folders, using the AES256 cipher in “salted” CBC Mode. Made for Mac OS X 10.5 (or later) Intel or PPC.

Perfenc is a encryption program that encrypts/decrypts files or the standard input with a one-time pad. More information about one-time pads is available at http://en.wikipedia.org/wiki/One-time_pad

EnigmaLike is an Enigma-like encoding tool for text files that encodes word-by-word using a dictionary/code book/encryption reel set-up. EnigmaLike is written using PerlTk and has instructions in PDF format. For Linux & Windows

Derived from TrueCrypt 6.3 release, I added some command line options to “TrueCrypt Format.exe” to allow TrueCrypt volumes to be created without using the graphical user interface