Lemmy vs Sublinks
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
Sublinks
Reddit-style federated link aggregator backend
| Feature | Lemmy | Sublinks |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 94 · Excellent | 3 · At risk |
| Category | Social Networks | Social Networks |
| License | AGPL-3.0 | AGPL-3.0 |
| Language | Rust | Java |
| Setup difficulty | Medium | Hard |
| Min. RAM | 512 MB | 2,048 MB |
| Deployment | docker, bare-metal, source | docker, source |
| GitHub stars | ★ 14,607 | ★ 80 |
| First released | 2019 | 2023 |
| Replaces |
What are Lemmy and Sublinks?
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
Sublinks
Sublinks is a Lemmy-compatible link aggregator and discussion platform built on the ActivityPub protocol. It aims to federate with the Threadiverse while offering an independent backend implementation.
- Lemmy-compatible federation
- ActivityPub Threadiverse
- Independent Java backend
- Link aggregation and voting
Lemmy vs Sublinks: key differences
Lemmy is written in Rust, while Sublinks is built with Java. Lemmy is the lighter option, starting around 512 MB of RAM against 2,048 MB for Sublinks. Lemmy is the more established project (first released 2019), while Sublinks arrived in 2023. Lemmy has the considerably larger community, at 14,607 GitHub stars versus 80.
Why pick each one
Choose Lemmy if…
- Reddit-like experience
- Efficient resource use
Watch out for
- Moderation tooling still maturing
- Fragmented across instances
Choose Sublinks if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Written in Java
Frequently asked questions
Is Lemmy or Sublinks better?
Lemmy is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Sublinks if its specific feature set fits your needs better.
Are Lemmy and Sublinks free and open-source?
Yes. Lemmy is licensed under AGPL-3.0 and Sublinks under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Lemmy and Sublinks with Docker?
Lemmy: yes. Sublinks: yes.
Which is lighter on resources, Lemmy or Sublinks?
Lemmy has the smaller minimum footprint at 512 MB of RAM, compared to about 2,048 MB for Sublinks. Real-world usage depends on library size, user count, and enabled features.