FlaskBB vs lemmyBB
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?
FlaskBB
Forum software written with Flask
VS
lemmyBB
Forum-style web front-end for the Lemmy backend
| Feature | FlaskBB | lemmyBB |
|---|---|---|
| Category | Forums & Community | Social Networks |
| License | BSD-3-Clause | AGPL-3.0 |
| Language | Python | JavaScript |
| Setup difficulty | Medium | Medium |
| Min. RAM | 256 MB | 128 MB |
| Deployment | bare-metal, source | docker, binary, source |
| GitHub stars | ★ 2,660 | ★ 199 |
| First released | 2014 | 2023 |
| Replaces | phpBB | Reddit, 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 lemmyBB if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Written in JavaScript
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is FlaskBB or lemmyBB better?
Neither is universally better. FlaskBB has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are FlaskBB and lemmyBB free and open-source?
Yes. FlaskBB is licensed under BSD-3-Clause and lemmyBB under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run FlaskBB and lemmyBB with Docker?
FlaskBB: check the project docs for container support. lemmyBB: yes.