Name:Duplicati (Free)
URL:https://www.duplicati.com/
Description:Free backup software to store encrypted backups online for Windows, macOS and Linux devices
Special Features: 

• Works with standard protocols like FTP, WebDAV as well as popular services like Microsoft One Drive, Amazon Cloud Drive Google Drive etc
• Backs-up files and folders with strong AES 256 encryption
• Has a built in scheduler and auto-updater
• Free and Open source 
• Cross platform