Alternatives to PunBB for all platforms with any license

Discourse

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. Self-hosted...

Freemium $ $ $ Open Source Web Self-Hosted Ruby JavaScript Docker
Integrated Spam Protection Live Push Notifications Mobile friendly Patreon Integration ... REST API Slack integration Trust Level system Add a feature

97 Like
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
Extensible by Plugins/Extensions Responsive design Support for Themes Add a feature

48 Like
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 PHP
Customer feedback Add a feature

72 Like
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
No features added Add a feature

27 Like
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
Integrated Spam Protection Add a feature

27 Like
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
No features added Add a feature

19 Like
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
No features added Add a feature

19 Like
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
No features added Add a feature

14 Like
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
No features added Add a feature

17 Like
Invision Community (previously known as IP.Board or IPS)

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
Support for Themes Add a feature

17 Like
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
No features added Add a feature

19 Like
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
No features added Add a feature

19 Like
WoltLab Suite

WoltLab Suite (formerly Burning Board) is an enterprise grade CMS built for communities and forums.

Commercial Mac Windows Linux MySQL Community Edition Self-Hosted ... PHP
Responsive design Add a feature

9 Like
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
Customer feedback Add a feature

3 Like
Flatboard

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

Free Open Source Self-Hosted
Flat File CMS Lightweight Add a feature

5 Like