FlaskBB vs PunBB
A side-by-side comparison of two self-hosted forums & community options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
FlaskBB
Forum software written with Flask
VS
PunBB
Fast and lightweight PHP-powered discussion board
| Feature | FlaskBB | PunBB |
|---|---|---|
| Category | Forums & Community | Forums & Community |
| License | BSD-3-Clause | GPL-2.0 |
| Language | Python | PHP |
| Setup difficulty | Medium | Easy |
| Min. RAM | 256 MB | 128 MB |
| Deployment | bare-metal, source | bare-metal, source |
| GitHub stars | ★ 2,660 | ★ 197 |
| First released | 2014 | 2003 |
| Replaces | phpBB | phpBB |
Why pick each one
Choose FlaskBB if…
- Released under the BSD-3-Clause license
- Active community (2.7k GitHub stars)
- Written in Python
- Tiny footprint — runs in 256 MB RAM
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 FlaskBB or PunBB better?
Neither is universally better. FlaskBB 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 FlaskBB and PunBB free and open-source?
Yes. FlaskBB is licensed under BSD-3-Clause and PunBB under GPL-2.0. Both can be self-hosted at no software cost.
Can I run FlaskBB and PunBB with Docker?
FlaskBB: check the project docs for container support. PunBB: check the project docs for container support.