Discourse vs kbin
A side-by-side comparison of two self-hosted social networks options — licensing, setup difficulty, resource needs, and what each one replaces.
Discourse
Modern open-source community discussion platform
VS
kbin
Federated content aggregator and microblog
| Feature | Discourse | kbin |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Category | Social Networks | Social Networks |
| License | GPL-2.0 | AGPL-3.0 |
| Language | Ruby | PHP |
| Setup difficulty | Medium | Hard |
| Min. RAM | 2,048 MB | 1,024 MB |
| Deployment | docker, source | docker, bare-metal, source |
| GitHub stars | ★ 47,889 | ★ 600 |
| First released | 2013 | 2020 |
| Replaces | phpBB, Reddit |
What are Discourse and kbin?
Discourse
Discourse is a free, open-source platform for community discussion, forums, and mailing lists. It offers real-time updates, trust levels, and an extensive plugin ecosystem.
- Real-time forum updates
- Trust-level moderation
- Rich plugin ecosystem
- Email-in posting
kbin
kbin is a free, open-source, federated content aggregator and microblogging platform. It combines Reddit-style threads with microblogging, all federating through ActivityPub.
- Threaded content aggregation
- Integrated microblogging
- ActivityPub federation
- Magazine-based communities
Discourse vs kbin: key differences
Discourse is written in Ruby, while kbin is built with PHP. Licensing differs — GPL-2.0 for Discourse versus AGPL-3.0 for kbin. Kbin is the lighter option, starting around 1,024 MB of RAM against 2,048 MB for Discourse. Discourse is the more established project (first released 2013), while kbin arrived in 2020. Discourse has the considerably larger community, at 47,889 GitHub stars versus 600.
Why pick each one
Choose Discourse if…
- Polished modern UI
- Strong moderation tools
Watch out for
- Resource-hungry
- Opinionated Docker setup
Choose kbin if…
- Combines forum and microblog
- Federates widely
Watch out for
- Complex Symfony deployment
- Development pace varies
Frequently asked questions
Is Discourse or kbin better?
Discourse is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider kbin if its specific feature set fits your needs better.
Are Discourse and kbin free and open-source?
Yes. Discourse is licensed under GPL-2.0 and kbin under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Discourse and kbin with Docker?
Discourse: yes. kbin: yes.
Which is lighter on resources, Discourse or kbin?
kbin has the smaller minimum footprint at 1,024 MB of RAM, compared to about 2,048 MB for Discourse. Real-world usage depends on library size, user count, and enabled features.