Makestation

Ajax chat is a very popular ajax chat client and is used by many websites to offer a simple, fully-featured chat room. It is able to be integrated with most popular forum software options, but the standalone version has the disadvantage of not having a registration system. I found a version today that included it by default, and it looks quite nice.

https://github.com/123Haynes/enhanced-Ajax-Chat

I wonder if it is better than addonchat

I use that

I personally prefer Ajax chat over addonchat. It doesn't require flash or java, and is pretty user friendly. I'm hosting two of them (one of which is very active) and the users love it.

Cool tip. May try it on my new forum.