Best Open Source Community Projects
freeCodeCamp
The open-source codebase and curriculum of freeCodeCamp.org
Discourse
Modern forum and community platform
Forem
Platform for building modern communities
Spectrum
Chat-based community platform from the former Spectrum team
Flarum
Modern forum software
Remark42
A lightweight, privacy-focused comment engine for any website.
Crowd.dev
Open-source community and customer data platform
LibrePCB
Electronic design automation without complexity
Cusdis
Lightweight, privacy-friendly alternative to Disqus
phpBB
The bulletin board software that helped define online forums, still going strong
Carbon Forum
High-performance, topic-based PHP forum
Elgg
Open-source social networking engine and framework
Question2Answer
Q&A community platform
Open Source Social Network
PHP social networking software with a modular component system
MyBB
Community forum software built by volunteers
pH7Builder
Self-hosted builder for dating and social community sites
Scoold
A lightweight, fast, and enterprise-ready Q&A platform.
Addons-Server
The Django app and API behind addons.mozilla.org
webtrees
Online collaborative genealogy
SMF
Simple Machines Forum for building online communities
OsClass Classifieds
Free classifieds website script
FluxBB
Free, fast and light forum application
Glimesh
Community-built live streaming platform
Admidio
User and membership management for organizations