LockNote is an efficient freeware application that will securely encrypt your text files. It is basically an application and document in one: the mechanism to encrypt and decrypt a note is part of it. LockNote is a small freeware which is only 312Kb and no installation is required for encrypting files. Simply drag and drop existing text files on a LockNote window: they will be encrypted automatically.
Once you drag and drop the text file into the application, it asks for the password for protecting the files.
Once the file is encrypted, then it is saved as self extracting encrypted file, so when the file is opened it asks for the password.
This will allow you to secure your personal information in a safe place, encrypt password files, phone numbers and other confidential information. Another advantage of LockNote is that you can carry it in USB drive as well as it does not require any installation. The encryption provided by LockNote is advanced AES 256-bit encryption.