MailStore - MailStore Home - A 100% free single-private-user desktop solution
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
Gmvault - Backup the emails in your Gmail account.
Nubo - A self-hosted file sharing application in Haskell.
Got Your Back - Got Your Back (GYB) is a command line tool that backs up and restores your Gmail account.
Loadbt - A Cloud Torrent Downloader. Easily download your torrent and stream on the cloud.