BoxCryptor is a free file encryption application which was designed for people who are always on the go. It allows you to encrypt files and folders for storage on cloud computer so that nobody can access the files and data without a password.
For those that are using BoxCryptor, it is fully compatible with services like Dropbox, Microsoft SkyDrive and Google Drive. Whether or not you’re using BoxCryptor in order to store data on a free or paid service, it works the same way.
Securing your data with this program is very easy and takes only a few steps. Once you’re done encrypting your data, it is secure behind AES-256 (256-bit encryption) technology.
A unique feature of this program is that you can also encrypt filenames so that there’s no guessing as to what is actually contained within a file.