PhpBB is a UBB-style discussion board written in PHP and backend is MySQL database. It is a high powered, fully scalable, and highly customizable Open Source bulletin board package. It includes features like posting/replying/editing messages, private forums, user and anonymous posting, robust theming, user ranking by posts or by special, admin definable, ranks, and much more.

PhpBB has a user-friendly interface, simple and straightforward administration panel, and helpful FAQ. It has got multiple language interface, powerful search utility and private messaging system. PhpBB is the ideal free community solution for all web sites and can be downloaded easily from phpbb website.

phpBB has been designed with security as priority. It provides powerful and extensive authorization system, strong encryption and supports for cookie and URL based sessions.

Though phpBB works best with MySQL database it also supports PostgreSQL, MS SQL server, MS Access as backend database.

Since the software is open source, it requires no fees, no subscriptions and no restrictions on modifications.