Open source Social networking

Akasha

Akasha is a decentralized social media network powered by the Ethereum world computer and embedded into the Inter-Planetary File System. (License not yet known)

Cross-platform

Diaspora

Diaspora is the privacy aware, personally controlled, do-it-all, open source social network. The developers aim for it to be a decentralized alternative to social network services like Facebook. (AGPL)

Cross-platform

Known

Known is an open, flexible social publishing platform. Publish in a group or as an individual with a variety of media, from blog posts and photographs to files and points on a map. Each post or Known wiste can be private or public. (Apache)

Cross-platform

Mastodon

Mastodon is a free, open-source social network server based on open web protocols like ActivityPub and OStatus. The social focus of the project is a viable decentralized alternative to commercial social media silos that returns the control of the content distribution channels to the people. (AGPL)

Cross-platform

Mattermost

Mattermost is an open source, self-hosted Slack-alternative. As an alternative to proprietary SaaS messaging, Mattermost brings all your team communication into one place, making it searchable and accessible anywhere. (MIT)

Cross-platform

Open Source Social Network

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. (OSSN)

Cross-platform

6 applications