Mailpile is a free and open source email client with the main focus of users privacy. It was released on 13 September 2014. Mailpile supports Linux, macOS, Windows. Mailpile is a modern web-mail client with user-friendly encryption and privacy features. The Mailpile allows mail to be organized using tags. Mailpile gives the public and private PGP key to the user for receiving encrypted emails and then decrypting it. Mailpile stores all files of users in encrypted form on disk.