Toucan is an open source portable app that can be used to backup, synchronize and encrypt your data. Synchronizing options include copy, update, mirror and equalise. Backup and restore can be done using zip or 7-zip formats. Encrypt entire folder structures or files using AES-256 encryption via ccrypt.
Toucan - Backup Synchronize and Encrypt
Authors Website: http://portableapps.com/apps/utilities/toucan
License: Open Source
Download: You can get Toucan HERE