Flarum

Flarum is the next-generation forum software that makes online discussion fun. It's simple, fast, and free.

Free Open Source Self-Hosted PHP

phpBB

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...

Free Open Source Mac Windows Linux Self-Hosted PHP

Simple Machines Forum

Simple Machines Forum — SMF in short — is a free, professional grade software package that allows you to set up your own online community within minutes. Its powerful...

Free Open Source Mac Windows Linux Self-Hosted

MyBB

MyBB is the free and open source, intuitive, extensible, and incredibly powerful forum software you've been looking for. With everything from forums to threads...

Free Open Source Mac Windows Linux Web

NodeBB

NodeBB is an open source forum software that's free and easy to use. A community forum allows you to engage and retain customers, keeping them interested and...

Free Open Source Web Self-Hosted MongoDB Redis Cloudron

bbPress

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...

Free Open Source Web

FluxBB

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...

Free Open Source Mac Windows Linux Web

vBulletin

vBulletin (abbreviated as vB) is a commercial Internet forum software produced by Jelsoft Enterprises. It is written in PHP using a MySQL database server.

Commercial Mac Windows Linux Android iPhone ... PHP

XenForo

A compelling community experience. Intuitive. Social. Engaging. Fast. XenForo brings a fresh outlook to forum software.

Commercial $ $ $ MySQL Community Edition Self-Hosted MariaDB PHP

Invision Community

Invision Community is a flexible, feature-packed and easy to customize platform that powers some of the biggest and best communities on the web.

Commercial $ $ $ Web Self-Hosted

Vanilla

Vanilla provides a standards-compliant, multi-lingual, theme-able and pluggablecommunity forum software that powers discussion forums on 800,000 sites. It's...

Freemium Web Self-Hosted

AsmBB

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.

Free Open Source Linux

PunBB

PunBB is a fast and lightweight PHP-powered discussion board. It is released under the GNU General Public License.

• Discontinued Last release was 4 years ago. Last commit was 2 years ago.

Free Open Source Mac Windows Linux Self-Hosted

YaBB

YaBB is a free Perl forum (bulletin board) system that has rivaled professional message boards for years. YaBB provides chat for visitors where they can post any time...

Free Open Source Mac Windows Linux Web Self-Hosted ... Perl

Flatboard

A Simple, Lightweight, Modern and Fast flat-file forum system written in PHP and Json.

Free Open Source Self-Hosted