Discourse vs PunBB
A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Discourse
Modern open-source community discussion platform
VS
PunBB
Fast and lightweight PHP-powered discussion board
| Feature | Discourse | PunBB |
|---|---|---|
| Category | Social Networks | Forums & Community |
| License | GPL-2.0 | GPL-2.0 |
| Language | Ruby | PHP |
| Setup difficulty | Medium | Easy |
| Min. RAM | 2,048 MB | 128 MB |
| Deployment | docker, source | bare-metal, source |
| GitHub stars | ★ 47,619 | ★ 197 |
| First released | 2013 | 2003 |
| Replaces | phpBB, Reddit | phpBB |
Why pick each one
Choose PunBB if…
- Released under the GPL-2.0 license
- Easy to set up — beginner-friendly
- Written in PHP
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is Discourse or PunBB better?
Neither is universally better. Discourse has the larger community, while PunBB is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Discourse and PunBB free and open-source?
Yes. Discourse is licensed under GPL-2.0 and PunBB under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Discourse and PunBB with Docker?
Discourse: yes. PunBB: check the project docs for container support.