Make your own chat room and share with your friends - chat.techcentroid.com/ you room name
eg: http://chat.techcentroid.com/1245
And share with your firends, or you could simply hang out in the lobby.
It is free and open source and released under MIT license, go ahead you can even sell it if you can.
No need to sign-up or login, just get started instantly.
Now easily group chat with any number of people, just share the url of your room and that's it!