Zulip : Powerful slack-like open source group chat
Conclave : Conclave is a peer-to-peer, real-time, collaborative text editor built from scratch in JavaScript. Intrigued by collaborative text editors such as Goo...
Quietnet : Simple chat program using near ultrasonic frequencies. Works without Wifi or Bluetooth and won't show up in a pcap.
freedom.js : freedom.js is a framework for building peer-to-peer (P2P) web apps. Easily create social applications that work in modern web browsers, Chrome package...
Scuttlebot : Scuttlebot is an open source peer-to-peer log store used as a database, identity provider, and messaging system. It has:
Global replication
File-synch...