Introduction
ChatIgniter is a web-based chat system implemented using CodeIgniter framework. It uses JQuery and MYSQL database. ChatIgniter system will give your CodeIgniter site users the chance to quickly send private messages to each other just like facebook. ChatIgniter uses AJAX so that users don’t have to refresh your page to view the messages.
ChatIgniter Features
Support
There is an installation file included in the zip file. I am also available for support.
Source