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Open Source Social Network is a self-hosted PHP platform for building private or public social networking websites. It provides profiles, groups, messaging, notifications, media sharing, and an extensible plugin system.
💡 Pick it for a more polished, collaboration-focused community platform with stronger permissions and administration.
HumHub is a flexible open-source social network application built to provide you with the tools to communicate and collaborate.
Free, with optional paid extensions
💡 Pick it when you need a flexible, developer-oriented social networking framework rather than a turnkey community site.
Elgg is an open-source social networking engine that provides a robust framework for building all kinds of social environments.
💡 Pick it if your community also needs WordPress publishing, themes, and its extensive plugin ecosystem.
BuddyPress is a free and open-source social networking plugin for WordPress.
💡 Pick it for a federated, public microblogging community instead of a traditional centralized social network.
Mastodon is a free, open-source social network. It is decentralized, allowing users to have their own server instances, called Mastodon instances, but...
💡 Pick it for broad federation and traditional social-network features without depending on a single central service.
Friendica is a decentralized social network software that allows users to connect with friends on different social platforms.
💡 Pick it for a privacy-oriented, decentralized social network with a simpler feature set than OSSN.
Diaspora is a decentralized social network that allows users to own their data and connect with others securely.
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