phpFox

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MemberPress

SocialEngine is an award winner for Best Social Network Software, and a leading online community software to power social media websites. With SocialEngine you can easily build or create your own social network

With JomSocial you can quickly setup a social network for your Joomla-powered website. The extension is built to be friendly to both developers and regular Joomla users. Features you have come to expect from a social network such as activity streams, comments, featured posts, hashtags, mentions, video shares, photo shares, location shares, moods, polls and more, is all included in the JomSocial extension for Joomla. Currently over 180,000 communities globally use JomSocial to power their social network.

A flexible WordPress plugin for building online communities, teams, and groups with WordPress-powered sites.

A next generation user profile and social networking plugin for WordPress. PeepSo allows you to quickly and effortlessly create a social network and online community with you WordPress-powered site. The foundation of PeepSo is 100% free and gives you the basics to create a functional community. For more advanced features, there is a extensions ecosystem for both free and premium plugins that can be used to add more functionality and features to your site.

A flexible WordPress plugin for building online communities, teams, and groups with WordPress-powered sites.

Ultimate Member is a WordPress plugin offers a wide range of features including user profiles, member directories, user registration and login, user role editing, content restriction.