ProtonMail alternatives

ProtonMail was founded in 2013 by scientists who met at CERN and were drawn together by a shared vision of a more secure and private Internet. Since then, ProtonMail has evolved into a global effort to protect civil liberties and build a more secure Internet, with team members also hailing from Caltech, Harvard, ETH Zurich and many other research institutions.

Skizzle is a chrome extension for Gmail that makes end-to-end encryption dead easy - No passwords to remember, share or manage - Send encrypted attachments to any Gmail address - Verify file access on a public blockchain - Generous Free Forever plan

Our mission is to help & empower ppl to choose privacy first products as a way of creating, consuming & sharing their data in the digital world. Our vision for users to make the digital world a better place where privacy/security is the utility in human's life

Criptext is an encrypted email service that guarantees security, privacy and control over all your email communications. We don‘t have access to your emails nor do we store them in our servers. You‘re in control now.

StealthMail is a solution which makes your emails secure and invisible to email relays, hackers, or Public Internet threats - making email relationship with clients a trusted one via StealthMail’s best-in-class Secure Email Channel.

MeSign is a free email client APP with automated S/MIME encryption. Every email can be encrypted, digitally signed and timestamp automatically. MeSign app has antivirus feature to handle all encrypted emails.

Mailfence is an easy to use secure and private email service. Mailfence provides OpenPGP based end-to-end encryption and digital signatures. It was launched in November 2013 by ContactOffice Group. Mailfence offers secure email but also Calendar, Contacts, Instant Messaging and File sharing function making it a secure alternative to G Suite.