Seald - Keep your conversations secure, everywhere.
HTTPS Everywhere - Chrome extension that encrypts and secures your browser
Keybase Chat - End-to-end encrypted chat built into Keybase
pianobar - “pianobar” is a free/open-source, console-based replacement for ...
Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.
SSL Enforcer - SSL Enforcer - Force SSL/TLS encryption for any browser or app. Block all unsecure connections.