OSSN

OSSN is a PHP‑based platform that lets you host a complete social networking site on your own servers. It provides the typical social features such as user registration, profiles, friend management, wall posts, groups, photo albums, messaging, live chat, and a news feed, together with administrative tools for user and ad management, analytics, and configuration of components. The software includes multilingual support, a responsive front‑end, and optional integrations like Giphy, Microsoft Active Directory login, and progressive web‑app capabilities.

The system is self‑hostable and available under the Cryptographic Autonomy License 1.0, offering a free tier without subscription requirements. Its modular architecture allows developers to extend functionality through a marketplace of free and premium add‑ons, while the core remains stable and maintained by a community of contributors.

OSSN targets organizations, communities, or individuals who want to create private or public social platforms while retaining full control over data and infrastructure, especially when they need a customizable, open‑source alternative to proprietary social networks.