15 Of The Best Free File Encryption Software and Tools
TrueCrypt (Windows/Mac/Linux)
TrueCrypt can create secure encrypted virtual disks or entire drives. The files can be encrypted on-the-fly so that they are decrypted as you access them and then encrypts again when you are done. TrueCrypt lets you create hidden volumes in encrypted volumes to make files even more secure.
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Pretty nice list. But you missed to include Conjurers Encrypter which is easy to use and also has anti-brute force technology.
http://en.wikipedia.org/wiki/Conjurers_Encrypter
What about http://www.lokibit.com? There is the cryptographic encryptor that I use. ***P.S: I extracted from the Zip instead of the downloader.
*WARNING!!! Due to the low funding of the website, the downloaders will offer toolbars that were hard to erase AND WILL INSTALL TO YOUR COMPUTER WHEN YOU OPEN THE DOWNLOADERS. (I got rid of it from the virtual machine.)
You should only download the Zip Archive package. (+scan)