HandyBits EasyCrypto:Creates self-extracting, encrypted files through the use of the common Blowfish algorithm.
4t HIT Mail Privacy Lite: Sends and receives private data hidden in images of various types by using a strong encrypting algorithm.
ABC CHAOS: A program which is able to encrypt and decrypt files of every type and even whole directory structures using strong encryption.
ABI-Coder: File encryption software for Windows that uses 128-bit Blowfish and 192-bit Triple DES algorithms to encrypt files and folders with just a click of the mouse.
AES Free: Creates self-extracting AES-encrypted files for Windows
BitCrypt Free: A tool allowing for encryption of plain text within a bitmap image. [Win32]
Chaos Mash: Offers 30 different way to encrypt a file along with personalized key for decrypting it.
Cif-Crypto and BlowCif: A small freeware "live-text" encryption tool for Windows platforms.
Crypto Anywhere - OpenPGP Edition: Allows for secure email encryption on the move, and can run from floppy or USB drive.
CryptoMail Service and Email System: Provides a free web-based email system (client/server, GNU) and service.
Cryptomathic File2File - Easy to use Desktop Encryption: File2File allows a user to right click a file, choose to encrypt and set a password.
DataRescue: The aCrypt software allows the user to encrypt files and send them via email to others without the software.
FileEncryptor: A small and powerful freeware utility for encrypting files with the AES algorithm.
FineCrypt: Multiple ciphers and key manager integrated with the Windows shell.
Iron Key: Encrypts files using the industry-standard DES cipher and produces self-extracting Windows executable encrypted files, which can be sent safely over the Internet.
Recommended Tested Free Encryption Software: A collection of software that has been extensively tested, probed and scrutinised for weaknesses by a group of security experts.
RIPcoder's Freeware Encryption Page: Freeware file and message encryption tool
ROT-13 Encryptor & Decryptor: Web form to encode and decode ROT13, a simple letter substitution encryption scheme.
Secure Hive Freeware: Encrypts files for archiving and sharing of parts of, or entire documents.
SecureTask: Professional task manager which allows for automatically performing various security-related tasks, such as automatic encryption, wiping, and system cleanup.
TrueCrypt: Open-source free on-the-fly disk encryption for Windows XP/2000. It can encrypt partitions or create virtual encrypted disks within files. Implemented ciphers: AES-256, Blowfish (448-bit key), 3DES, Serpent, Twofish. Provides plausible deniability.
Wincry File Encryption System: