Lemmy vs lemmyBB
A side-by-side comparison of two self-hosted social networks options — licensing, setup difficulty, resource needs, and what each one replaces.
Lemmy
Federated link aggregator and forum
VS
lemmyBB
Archived
Forum-style web front-end for the Lemmy backend
| Feature | Lemmy | lemmyBB |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 94 · Excellent | 6 · At risk |
| Status | Actively maintained | Archived |
| Category | Social Networks | Social Networks |
| License | AGPL-3.0 | AGPL-3.0 |
| Language | Rust | JavaScript |
| Setup difficulty | Medium | Medium |
| Min. RAM | 512 MB | 128 MB |
| Deployment | docker, bare-metal, source | docker, binary, source |
| GitHub stars | ★ 14,607 | ★ 200 |
| First released | 2019 | 2023 |
| Replaces | Reddit, phpBB |
What are Lemmy and lemmyBB?
Lemmy
Lemmy is a free, open-source, federated link aggregator and discussion platform. It is a fediverse alternative to Reddit, with communities that federate across instances via ActivityPub.
- Federated communities
- Threaded discussions and voting
- ActivityPub support
- Fast Rust backend
lemmyBB
lemmyBB is an alternative front-end for Lemmy that presents the federated link aggregator with a traditional phpBB-style forum interface. It connects to any Lemmy instance through the public API.
- Classic forum-style Lemmy UI
- Works with any Lemmy instance
- Lightweight Rust front-end
- ActivityPub Threadiverse
Lemmy vs lemmyBB: key differences
The biggest difference is maintenance: lemmyBB's repository is archived and no longer developed, while Lemmy is actively maintained. Lemmy is written in Rust, while lemmyBB is built with JavaScript. LemmyBB is the lighter option, starting around 128 MB of RAM against 512 MB for Lemmy. Lemmy is the more established project (first released 2019), while lemmyBB arrived in 2023. Lemmy has the considerably larger community, at 14,607 GitHub stars versus 200.
Why pick each one
Choose Lemmy if…
- Reddit-like experience
- Efficient resource use
Watch out for
- Moderation tooling still maturing
- Fragmented across instances
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 Lemmy or lemmyBB better?
Neither is universally better. Lemmy has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Lemmy and lemmyBB free and open-source?
Yes. Lemmy is licensed under AGPL-3.0 and lemmyBB under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Lemmy and lemmyBB with Docker?
Lemmy: yes. lemmyBB: yes.
Which is lighter on resources, Lemmy or lemmyBB?
lemmyBB has the smaller minimum footprint at 128 MB of RAM, compared to about 512 MB for Lemmy. Real-world usage depends on library size, user count, and enabled features.