Self-hostable software: Social Networks (69)

Mastodon is a free, open-source social network server based on ActivityPub for publishing posts, media, and interacting across the federated Fediverse.

An open-source community platform for running discussion forums and real-time chat.

Lila is a free online chess game server focused on realtime gameplay and ease of use.

Flarum is a simple, fast, extensible discussion platform for building online communities and forums.

Apache Answer is a Q&A platform for teams that can be used as a community forum, help center, or knowledge management platform.

A free, decentralized, federated video platform for hosting, sharing, and livestreaming videos.

NodeBB is a Node.js-based forum software for real-time discussions, notifications, and community messaging.

Lemmy is a self-hostable, decentralized link aggregator and forum for the fediverse.

diaspora* is a privacy-aware, distributed open source social network.

Owncast is a self-hosted live video streaming and chat server for running independent live streams.

Misskey is an open-source federated social media platform.

NewsBlur is a personal RSS feed reader and social news network with filtering, training, and sharing features, available as a self-hosted instance or hosted service.