Open Source Communication - Social Networks and Forums Software
Found 38 self-hosted alternatives in this category.
Akkoma
Federated microblogging server with Mastodon, GNU social, and ActivityPub compatibility
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
Artalk
Comment system built in Golang, providing a lightweight and highly customizable solution for adding comments to your website
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
Chirpy
Privacy-friendly and customizable Disqus (comment system) alternate.
Enigma 1/2 BBS
Enigma 1/2 is a modern, multi-platform BBS engine with unlimited "callers" and legacy DOS door game support
Flarum
Delightfully simple forums. Flarum is the next-generation forum software that makes online discussion fun again
GoToSocial
ActivityPub federated social network server implementing the Mastodon client API
Hatsu
Bridge that interacts with Fediverse on behalf of your static site
Hubzilla
Decentralized identity, privacy, publishing, sharing, cloud storage, and communications/social platform
Iceshrimp.NET
Federated microblogging server that communicates over ActivityPub
Isso
Lightweight commenting server written in Python and Javascript. It aims to be a drop-in replacement for Disqus
Loomio
Collaborative decision-making tool that makes it easy for anyone to participate in decisions which affect them
Misago
Fully featured modern forum application that is fast, scalable and responsive
Misskey
Decentralized app-like microblogging server/SNS for the Fediverse, using the ActivityPub protocol like GNU social and Mastodon
Movim
Modern, federated social network based on XMPP, with a fully featured group-chat, subscriptions and microblogging
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
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
PixelFed
Ethical photo sharing platform, powered by ActivityPub federation (alternative to Instagram)
Pleroma
Federated microblogging server, Mastodon, GNU social, & ActivityPub compatible
remark42
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.
Scoold
Stack Overflow in a JAR. An enterprise-ready Q&A platform with full-text search, SAML, LDAP integration and social login support.
Simple Machines Forum
Free, professional grade software package that allows you to set up your own online community within minutes
Socialhome
Federated and decentralized profile builder and social network engine.
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).