bbPress vs SMF
A side-by-side comparison of two self-hosted forums & community options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | bbPress | SMF |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Health score | 62 · Good | 78 · Good |
| Category | Forums & Community | Forums & Community |
| License | GPL-2.0 | BSD-3-Clause |
| Language | PHP | PHP |
| Setup difficulty | Easy | Easy |
| Min. RAM | 256 MB | 256 MB |
| Deployment | bare-metal, source | docker, bare-metal, source |
| GitHub stars | ★ 49 | ★ 749 |
| First released | 2004 | 2004 |
| Replaces | phpBB, vBulletin | vBulletin, phpBB |
What are bbPress and SMF?
bbPress
bbPress is lightweight, open-source forum software built by the WordPress team that adds discussion boards to any WordPress site. It supports topics, replies, moderation, and user roles within the WordPress admin.
- Native WordPress integration
- Topics and replies
- Role-based moderation
- Plugin extensible
SMF
SMF, or Simple Machines Forum, is a free, professional-grade forum package that lets you run an online community. It is known for stability, a strong permission system, and broad customization.
- Granular permission system
- Mods and themes support
- Strong moderation features
- Multilingual support
bbPress vs SMF: key differences
Both projects are written in PHP. Licensing differs — GPL-2.0 for bbPress versus BSD-3-Clause for SMF. SMF has the considerably larger community, at 749 GitHub stars versus 49. SMF lists first-class Docker deployment; bbPress does not.
Why pick each one
Choose bbPress if…
- Released under the GPL-2.0 license
- Easy to set up — beginner-friendly
- Written in PHP
- Tiny footprint — runs in 256 MB RAM
Choose SMF if…
- Reliable and well established
- No licensing fees
Watch out for
- Dated default appearance
- Slower modern development
Frequently asked questions
Is bbPress or SMF better?
Neither is universally better. SMF has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are bbPress and SMF free and open-source?
Yes. bbPress is licensed under GPL-2.0 and SMF under BSD-3-Clause. Both can be self-hosted at no software cost.
Can I run bbPress and SMF with Docker?
bbPress: check the project docs for container support. SMF: yes.