Lockbin!

Secure email with absolutely no compromises, brought to you by MIT and CERN scientists.

Tutanota is a free and open source web-mail client that focuses on privacy. There's also an Android and an iOS app. All data is stored encrypted and can not be searched, i.e. for commercial usage. It offers dead easy end-to-end encryption.

Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the OpenPGP standard.

Mailvelope is a browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard.

Kolab Now, formerly MyKolab, is a fully featured secure collaboration and communication service that is easy to use on any device.

mailbox.org offers a secure e-mail account for home and business use. The domain name, [email protected], is easy to remember and can be understood anywhere in the world. They have been operating e-mail accounts for more than 20 years and are a highly reliable service provider.

Disroot is a project based in Amsterdam, it is maintained by volunteers and depends on the support of its community.

GPGMail is an open source plugin for Apple Mail. It brings the functionality to sign, verify, encrypt and decrypt mails using the OpenPGP standard.

MsgSafe.io provides private, encrypted, online communication with layers of security you can trust. With rocketing growth online and improvements to computer capacity, governments and private sector are collecting and sharing information on every facet of people’s lives. MsgSafe.io is dedicated to actively improving privacy protection with innovative technology.

SCRYPTmail is true end-to-end encrypted email service. Email and meta data, i.e sender / recipient are encrypted when you communicate within scryptmail domain.

An extension to send secure, encrypted messages through Gmail.

FlowCrypt (formerly CryptUp) lets you Encrypt Gmail with PGP in 60 seconds. Easiest end-to-end encryption for Google Email.

Virtru provides digital privacy technology to let you easily share information securely through all major email programs and applications. Virtru puts you in charge of how your digital information is shared. Combining control, convenience, and simplicity, Virtru makes it easy to keep your private communications private.

CounterMail - the secure email provider

WebPG is a free, open source suite of tools to bring GnuPG/PGP (gpg, gnupg) to the browser, in an effort to make cryptographic methods usable, safe and accessible to the common man.WebPG encompasses several projects, from the backend technology that interfaces with GnuPG/PGP (gpg, gnupg), to the user interface utilities that bring those methods to the browser.