BlaB!
Completely free web based chat written in PHP, using AJAX as a transport system and MySQL as a database storage. The project started back in 2002 as a self-refreshing page called Simple Chat that can still be found on the Internet. Can be installed on any hosting server that supports PHP/MySQL (shared hosts as well). Freeware

BlaB! Plus / BlaB! Pro
BlaB! on steroids. Tons of features, multiple rooms, can be integrated with bulletin boards and CMS such as phpBB, IP.Board, vBulletin, Expression Engine, Joomla, WordPress, Simple Machines + custom integration. Can be installed on any hosting server that supports PHP/MySQL (shared hosts as well).

Page updated: 2017-07-15