Open Source Alternatives to vBulletin

Forum software designed for creating and managing online communities. The product provides tools for user interaction, discussion threads, and community moderation to help administrators organize content and manage member behavior. It is intended for organizations and individuals who need to host a structured discussion space for their members to share knowledge and engage in conversations. The software is deployed as a self-hosted or hosted solution to facilitate public or private communication across various topics. It includes features for managing user profiles, permissions, and community engagement to ensure a stable environment for growth. The system operates by allowing users to create accounts and participate in categorized forums based on the administrative settings of the site owner.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to vBulletin give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 6 open source alternatives to vBulletin. The most popular are Flarum, NodeBB and Misago. Most use the GPL-2.0 or BSD-3-Clause license, and 3 offer an official Docker image.