MailStore - MailStore Home - A 100% free single-private-user desktop solution
ManageEngine RecoveryManager Plus - RecoveryManager Plus is one such enterprise backup solution which has the ability to easily backup and restores both the domain controllers and virtual machines.
Gmvault - Backup the emails in your Gmail account.
Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.
Got Your Back - Got Your Back (GYB) is a command line tool that backs up and restores your Gmail account.
SECDO - SECDO offers automated endpoint security and incident response solutions