OpenCHAT is a Pure 100% HTTP and HTML based chat server written in Java. It has it’s own stand alone HTTP server integrated into application and it does not require any other Applet or special software on client side to run the Openchat application, but only a frames enabled web browser are useful for openchat.
Openchat is a Multilanguage supported and fully customizable chat server that allow user to customize not only html templating engine, but also for internal messages, such as “All”, “Private”, Error”, etc. in multiple languages. it also support for different skins for each domain that allow users to create different templates for each room.
Download: OpenCHAT – HTTP/HTML CHAT Server