Host Communication - Social Networks and Forums Tools

Federated microblogging server with Mastodon, GNU social, and ActivityPub compatibility.

An open-source 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.

Open Source Social Networking Framework and Platform.

A fast, SQLite-powered forum engine written in ASM.

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 is an open-source, privacy-friendly and customizable Disqus (comment system) alternate.

A better commenting experience from Vox Media.

Distributed social networking server.

Advanced forum / community solution based on Ruby and JS.

Powerful open source social networking engine.

Enigma 1/2 is a modern, multi-platform BBS engine with unlimited “callers” and legacy DOS door game support.

Delightfully simple forums. Flarum is the next-generation forum software that makes online discussion fun again.

Social Communication Server.

ActivityPub federated social network server implementing the Mastodon client API.

Flexible kit for private social networks.

Decentralized identity, privacy, publishing, sharing, cloud storage, and communications/social platform.

Lightweight commenting server written in Python and Javascript. It aims to be a drop-in replacement for Disqus.

Federated content aggregator and microblogging platform.

A link aggregator / reddit clone for the fediverse (alternative to Reddit).

Private front-end for Reddit written in Rust.

Loomio is a collaborative decision-making tool that makes it easy for anyone to participate in decisions which affect them.

Federated microblogging server.

Misago is fully featured modern forum application that is fast, scalable and responsive.

Decentralized app-like microblogging server/SNS for the Fediverse, using the ActivityPub protocol like GNU social and Mastodon.

Modern, federated social network based on XMPP, with a fully featured group-chat, subscriptions and microblogging.

Free, extensible forum software package.

Forum software built for the modern web.

A alternative front end to twitter.

Open Source Social Network (OSSN) is a social networking software written in PHP. It allows you to make a social networking website and helps your members build social relationships, with people who share similar professional or personal interests.

Orange Forum is an easy to deploy forum that has minimal dependencies and uses very little javascript.

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 is an open-source, federated platform alternate to Instagram.

Federated microblogging server, Mastodon, GNU social, & ActivityPub compatible.

Q&A-based community knowledge-sharing software.

A 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.

A free, open-source social network following the Q/A (question and answer) principle of sites like Formspring, ask.fm or CuriousCat.

Stack Overflow in a JAR. An enterprise-ready Q&A platform with full-text search, SAML, LDAP integration and social login support.

Free, professional grade software package that allows you to set up your own online community within minutes.

Federated and decentralized profile builder and social network engine.

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).

Federated microblogging server. Mastodon, & ActivityPub compatible.

Self-Hosted, Twitter™-like Decentralised micro-logging platform. No ads, no tracking, your content, your data.

Free and open-source way to self-host private forums for groups of friends or family.