Flarum - Flarum is the next-generation forum software that makes online discussion fun. It's simple, fast, and free.
XenForo - Intuitive. Social. Engaging. Fast. XenForo brings a fresh outlook to forum software.
Simple Machines Forum - Simple Machines offers free open source software such as SMF, the powerful and easy to use community forum written in PHP. Start interesting discussions on your website!
Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.
MyBB - MyBB is a discussion board software that runs on PHP and MySQL
phpBB - Raspberry Pi. The Raspberry Pi is a cheap, credit-card sized computer. The official website uses phpBB for their discussion forums. phpBB is not affiliated with nor responsible for any of the sites listed on the showcase.