Best Thing is Friendica is a free and open-source software distributed social network. It forms one part of the Fediverse, an interconnected and decentralized network of independently operated servers
Based on our record, Friendica seems to be a lot more popular than Elgg. While we know about 32 links to Friendica, we've tracked only 1 mention of Elgg. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Maybe something like ELGG could be a base depending on your skills. I still was unhappy with that and started down a custom route but stagnated due to the time sink. Source: almost 2 years ago
You might want to look into some of the Facebook-like open-source social networking programs like Friendica, Hubzilla, Libervia, or GNU Social. Source: 6 months ago
I think that Friendi.ca is the fediverse equivalent of FB, in the same way that Mastodon is to twitter. https://friendi.ca. Source: 11 months ago
In addition to what has been said, you can also use Friendica, another great decentralized alternative (server list). It supports RSS, along with being a regular social network. Source: 11 months ago
Facebook being whatever it is would be friendi.ca. Source: 12 months ago
Given the similarity to FB, what's the advantage over Friendica or Hubzilla? Both support federation with other servers and can be run as a closed community too. Source: about 1 year ago
SocialEngine - Socialengine PHP: Elevating Your Online Community Experience.
Mastodon - Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!
phpFox - phpFox is a powerful social network platform for niche communities
Gab - Gab is an ad-free social network dedicated to free speech.
JomSocial - Open Source Social Networking Software. Award winning open source community software by JomSocial. This social networking software is widely used by many Joomla users.
Diaspora - The online social world where you are in control.