The most popular alternative is Flarum, which is both free and Open Source. If that doesn't suit you, our users have ranked 30 alternatives to Phorum so hopefully you can find a suitable replacement. Other interesting Phorum alternatives are phpBB (Free, Open Source), Simple Machines Forum (Free, Open Source), MyBB (Free, Open Source) and NodeBB (Freemium, Open Source).
- Flarum is the next-generation forum software that makes online discussion fun. It's simple, fast, and free.
- Since its creation in 2000, phpBB™ has become the most widely used Open Source forum solution. Like its predecessors, phpBB™ 3.
- 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.
- MyBB is the free and open source, intuitive, extensible, and incredibly powerful forum software you've been looking for.
- NodeBB is next generation forum software. It's powerful, mobile-ready and easy to use.
- FluxBB is a fast, light, user-friendly forum application for your website.
- Vanilla is a powerfully simple discussion forum you can easily customize to make as unique as your community.
- A compelling community experience. Intuitive. Social. Engaging. Fast. XenForo brings a fresh outlook to forum software.
- vBulletin (abbreviated as vB) is a commercial Internet forum software written in PHP using a MySQL database server.
- 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.