Forem vs Lemmy

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?
FeatureForemLemmy
CategoryForums & CommunitySocial Networks
LicenseAGPL-3.0AGPL-3.0
LanguageRubyRust
Setup difficultyHardMedium
Min. RAM2,048 MB512 MB
Deploymentdocker, sourcedocker, bare-metal, source
GitHub stars★ 22,760★ 14,538
First released20192019
ReplacesDiscourse, RedditReddit

Why pick each one

Choose Forem if…

  • Released under the AGPL-3.0 license
  • First-class Docker support for quick deployment
  • Mature project with 22.8k GitHub stars
  • Written in Ruby
Forem details

Choose Lemmy if…

  • Reddit-like experience
  • Efficient resource use
Lemmy details

Frequently asked questions

Is Forem or Lemmy better?

Neither is universally better. Forem has the larger community, while Lemmy is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.

Are Forem and Lemmy free and open-source?

Yes. Forem is licensed under AGPL-3.0 and Lemmy under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run Forem and Lemmy with Docker?

Forem: yes. Lemmy: yes.

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