ZeroTalk!

Discourse is an open source discussion platform built for the next decade of the Internet. A modern forum, everything's been redesigned to be easy.

Since its creation in 2000, phpBB™ has become the most widely used Open Source forum solution. Like its predecessors, phpBB™ 3.2 “Rhea” has an easy to use administration panel and a user friendly installation process, which allows you to have a forum set up in minutes.

NodeBB is an open source forum software that's free and easy to use.

bbPress is forum software with a twist from the creators of WordPress. Its focused on web standards, ease of use, ease of integration, and speed. bbPress will try to keep things as small and light as possible while still allowing great add-on feature possibilities.

FluxBB is a fast, light, user-friendly forum application for your website. FluxBB was designed as a lighter, faster alternative to some of the traditional feature heavy forum applications. It is easy to use and has a proven track record of stability and security making it an ideal choice of forum for your website. FluxBB produces valid XHTML 1.0 Strict pages, supports UTF-8 and is Free to use (GNU GPL)

AsmBB is high performance web forum software, written entirely in assembly language. It is very lightweight, but provides decent set of features and ultimate performance.

The C-BOARD is a project discussion forum software, designed to improve the collaboration capabilities in projects with locally dispersed team-mates.Especially for student projects, in which the project members are usually not sitting together in one room when working together in the project, but each project member is working from different places (from their homes, libraries, public places with a wifi…) this is a great solution.The C-BOARD is the right, easy to install and use groupware tool for projects for any school, college, university or institute in which project collaboration is part of the education.With the rise of agile project organizations, working in projects is more and more becoming the “new normal” - and project organized collaboration is replacing other forms of organizing work.Working together in projects is different – especially in projects with a locally dispersed workforce configuration and the need of using Information and Communication Technology (ICT). Therefor the C-BOARD project discussion forum software has some world innovative features to improve the organization of the project – it is the only project communication software solution which is organizing project communication alongside the project’s Work Breakdown Structure (WBS). (WBS-assigned discussion threads.)With the main reason of running into bad conflicts and low motivation in projects with a locally distributed project team can be found in the main difference compared to “normal”, co-located projects: the missing face-to-face-communication, the C-BOARD project discussion forum solution is taking advantage of the CFLX [si:flaegs] to enhance the way of project communication.The concept of the CFLX (“clarity communication flags”) adapts the work of Paul Watzlawick’s 2nd axiom of communication and the Communication-Square developed by Friedemann Schulz von Thun. »

FlaskBB is forum software written in Python using the micro framework Flask. You can easily create new topics, posts and send other users private messages. It also includes basic administration and moderation tools.