EncFS is a Free (LGPL) FUSE-based cryptographic filesystem. It transparently encrypts files, using an arbitrary directory as storage for the encrypted files. Developed by arg0.net
License: Open Source
Jetico BestCrypt is a comprehensive encryption solution offering strong algorithms and various features for both file and disk encryption, while EncFS is an open-source option that provides ease of use and flexibility for mounting encrypted directories. The choice between them depends on the user's needs for security versus simplicity.