Open Source & Modern Chat App – Kandan
Kandan is a free and open source chat application that is built with Ruby on Rails and works with various databases.
The application allows conversations on multiple rooms/channels with a tabbed and slick interface.
It is possible to view the active users, invite people via e-mail and have private chats.
There is a per-channel media library where users can choose what to listen or a channel-wide music can be streamed.
Kandan can be extended with plugins and can be deployed to multiple cloud hosting providers with ease.