Buddy Press is an open source social networking software package owned by Automattic. Everything you need to start your own self-hosted and Word Press-powered social network”.Download Check out: Best Free and Premium Buddy Press Themes 2017 Dolphin is a CMS that lets you create social networks, dating sites and web communities.Its built to run on the LAMP (Linux, Apache, My SQL, and PHP) platform.
Demo | Download People Pods claims to be The CMS is flexible and is well-backed by active development.
Demo | Download Pligg is an open source CMS (Content Management System) that you can download and use for free.
Most social network services are web based and provide means for users to interact over the internet, share ideas, discuss shared concerns etc.
Here is a list of 12 open source platforms to build your own social networking website.
Download Jcow is a flexible social networking CMS coded in PHP.