Secret is an open-source tool that allows you to safely send a message privately using an encrypted link.
Hermes is a decentralized, encrypted chat app, built on Blockstack. Privacy is our priority. Your information is end to end encrypted, and is only
shared with the people you choose. You hold your own private keys.
Zhoo is a super simple chat app which is also available as a browser extension.
Free, secure & anonymous password protected chatrooms with self-destructing messages.