Mastodon
50kFederated microblogging server.
Communication - Social Networks and ForumsAGPL-3.0
NodeBB
Forum software built for the modern web.
Details
- Website
- nodebb.org
- Source
- github.com
- Demo
- try.nodebb.org
- Licence
- GPL-3.0
- Platforms
- Nodejs, Docker
- GitHub stars
- 15,240
- Last update
- 2026-10-18
Open-source alternative to
Categories
Alternatives to NodeBB
See all Communication - Social Networks and Forums →Discourse
48kAdvanced forum / community solution based on Ruby and JS.
Communication - Social Networks and ForumsGPL-2.0
Flarum
16kDelightfully simple forums. Flarum is the next-generation forum software that makes online discussion fun again.
Communication - Social Networks and ForumsMIT
Answer
16kKnowledge-based community software. You can use it to quickly build your Q&A community for product technical support, customer support, user communication, and more.
Communication - Social Networks and ForumsApache-2.0
Lemmy
15kLink aggregator for the fediverse (alternative to Reddit).
Communication - Social Networks and ForumsAGPL-3.0
diaspora*
14kDistributed social networking server.
Communication - Social Networks and ForumsAGPL-3.0