Online Vault Backup - Online Vault Backup is a cloud storage service that allows you backup your data while having unlimited storage.
Examdiff Pro - It is a simple yet powerful tool that is being used by the professional programmer and developers for the purpose of visual comparison.
Rebel Backup - Rebel Backup lets you make encrypted backups of your important files to Dropbox or Google Drive.
rsync - rsync is a file transfer program for Unix systems. rsync uses the "rsync algorithm" which provides a very fast method for bringing remote files into sync.
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
Beyond Compare - Beyond Compare allows you to compare files and folders.