FUDforum is described as '(Fast Uncompromising Discussion Forum) is a free and open source web discussion forum. FUDforum combines an extensive feature set while maintaining the ability to generate forum web pages extremely fast' and is an app in the Social & Communications category. There are more than 25 alternatives to FUDforum for a variety of platforms, including Self-Hosted solutions, Linux, Online / Web-based, Windows and Mac. The best alternative is Flarum, which is both free and Open Source. Other great apps like FUDforum are phpBB (Free, Open Source), Simple Machines Forum (Free, Open Source), MyBB (Free, Open Source) and NodeBB (Freemium, Open Source).
Gz Forum Scripts is an open source online forum software. It provides an easy way to manage posts, topic, replies, categories and more. GZ Forum Scripts is developed to easily integrate into any website and web application.
Discussion Board for project collaboration with WBS-design, CFLX and advanced team mate profiles. Open Source, available for free, installed/ deployed within a few minutes, runs on most free web hosters (with PHP & MySQL).