Rocket.Chat : Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
It is a great solution for communities and companies ...
Quietnet : Simple chat program using near ultrasonic frequencies. Works without Wifi or Bluetooth and won't show up in a pcap.
Zulip : Powerful slack-like open source group chat
Rasa : Open source machine learning tools for developers and product teams to expand bots beyond answering simple questions.
Rasa Core's primary purpose is ...
