Rocket Chat – Your Own Open Source Chat Solution

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework. It is a great solution for communities and companies wanting to privately host their own chat service or for developers looking forward to build and evolve their own chat platforms. You can own an open source Slack-like chat. Note that Rocket.Chat is distributed under the MIT License.

Requirements: Meteor Framework
Demo: http://rocket.chat/
License: MIT License