Social Networking and Forum software.
Federated Social Networks
Mastodon
Federated microblogging server.
Akkoma
Federated microblogging server with Mastodon, GNU social, and ActivityPub compatibility.
- Source Code: akkoma.dev
- License: AGPL-3.0
- Tech Stack: Elixir, Docker
Pleroma
Federated microblogging server, Mastodon, GNU social, & ActivityPub compatible.
GoToSocial
ActivityPub federated social network server implementing the Mastodon client API.
- Source Code: Codeberg
- License: AGPL-3.0
- Tech Stack: Docker, Go
Misskey
Decentralized app-like microblogging server/SNS for the Fediverse, using the ActivityPub protocol like GNU social and Mastodon.
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: Nodejs, Docker
Iceshrimp.NET
Federated microblogging server that communicates over ActivityPub.
- Source Code: iceshrimp.dev
- License: EUPL-1.2
- Tech Stack: .NET, C#, Docker
PixelFed
Ethical photo sharing platform, powered by ActivityPub federation (alternative to Instagram).
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: PHP
Lemmy
Link aggregator for the fediverse (alternative to Reddit).
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: Docker, Rust
diaspora*
Distributed social networking server.
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: Ruby
Friendica
Social Communication Server.
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: PHP
Hubzilla
Decentralized identity, privacy, publishing, sharing, cloud storage, and communications/social platform.
Movim
Modern, federated social network based on XMPP, with a fully featured group-chat, subscriptions and microblogging.
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: PHP, Docker
Hatsu
Bridge that interacts with Fediverse on behalf of your static site.
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: Docker, Rust
yarn.social
Self-Hosted, Twitter™-like Decentralised micro-logging platform. No ads, no tracking, your content, your data.
Modern Forums
Discourse
Advanced forum / community solution based on Ruby and JS.
Flarum
Delightfully simple forums. Flarum is the next-generation forum software that makes online discussion fun again.
- Source Code: GitHub
- License: MIT
- Tech Stack: PHP
NodeBB
Forum software built for the modern web.
Misago
Fully featured modern forum application that is fast, scalable and responsive.
- Source Code: GitHub
- License: GPL-2.0
- Tech Stack: Docker
Talkyard
Create a community, where your users can suggest ideas and get questions answered. And have friendly open-ended discussions and chat (Slack/StackOverflow/Discourse/Reddit/Disqus hybrid).
Traditional Forums
phpBB
Flat-forum bulletin board software solution that can be used to stay in touch with a group of people or can power your entire website.
- Source Code: GitHub
- License: GPL-2.0
- Tech Stack: PHP
MyBB
Free, extensible forum software package.
- Source Code: GitHub
- License: LGPL-3.0
- Tech Stack: PHP
Simple Machines Forum
Free, professional grade software package that allows you to set up your own online community within minutes.
- Source Code: GitHub
- License: BSD-3-Clause
- Tech Stack: PHP
AsmBB
Fast, SQLite-powered forum engine written in ASM.
- Source Code: asm32.info
- License: EUPL-1.2
- Tech Stack: Assembly
Niche Forums & BBS
Enigma 1/2 BBS
Enigma 1/2 is a modern, multi-platform BBS engine with unlimited “callers” and legacy DOS door game support.
- Source Code: GitHub
- License: BSD-2-Clause
- Tech Stack: Shell, Docker, Nodejs
Answer
Knowledge-based community software. You can use it to quickly build your Q&A community for product technical support, customer support, user communication, and more.
- Source Code: GitHub
- License: Apache-2.0
- Tech Stack: Docker, Go
Scoold
Stack Overflow in a JAR. An enterprise-ready Q&A platform with full-text search, SAML, LDAP integration and social login support.
qpixel
Q&A-based community knowledge-sharing software.
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: Ruby
Isso
Lightweight commenting server written in Python and Javascript. It aims to be a drop-in replacement for Disqus.
- Source Code: GitHub
- License: MIT
- Tech Stack: Python, Docker
Lightweight and simple comment engine, which doesn’t spy on users. It can be embedded into blogs, articles or any other place where readers add comments.
Coral
A better commenting experience from Vox Media.
- Source Code: GitHub
- License: Apache-2.0
- Tech Stack: Docker, Nodejs
Chirpy
Privacy-friendly and customizable Disqus (comment system) alternate.
Artalk
Comment system built in Golang, providing a lightweight and highly customizable solution for adding comments to your website.
- Source Code: GitHub
- License: MIT
- Tech Stack: Go, Docker
HumHub
Flexible kit for private social networks.
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: PHP
Elgg
Powerful open source social networking engine.
- Source Code: GitHub
- License: GPL-2.0
- Tech Stack: PHP
BuddyPress
Powerful plugin that takes your WordPress.org powered site beyond the blog with social-network features like user profiles, activity streams, user groups, and more.
- Source Code: GitHub
- License: GPL-2.0
- Tech Stack: PHP
OSSN
Social networking software that allows you to make a social networking website and helps your members build social relationships, with people who share similar professional or personal interests.
- Source Code: GitHub
- License: CAL-1.0
- Tech Stack: PHP
Socialhome
Federated and decentralized profile builder and social network engine.
Decision-Making & Collaboration
Loomio
Collaborative decision-making tool that makes it easy for anyone to participate in decisions which affect them.
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: Docker
Alternative Frontends
Redlib
This application has anti-features. Please review before deploying.
- Source Code: GitHub
- License: AGPL-3.0
- Tech Stack: Rust