Pleroma

Follow friends and discover new ones among more than 4.4M people. Publish anything you want: links, pictures, text, video. All on a platform that is community-owned and ad-free. Mastodon isn’t a single website like Twitter or Facebook, it's a network of thousands of communities operated by different organizations and individuals that provide a seamless social media experience. Mastodon comes with effective anti-abuse tools to help protect yourself. Thanks to the network's spread out and independent nature there are more moderators who you can approach for personal help, and communities with strict codes of conduct. You have 500 characters. You can adjust the thumbnails of your pictures with focal points. You can use custom emojis, hide things behind spoiler warnings and choose who sees a given post. Messed it up? You can delete & redraft for quick corrections. Without an incentive to sell you things, Mastodon allows you to consume content you enjoy uninterrupted.

friendica is a decentralized social network. Decentralized architecture with no central authority or ownership. Relationships can be made across any compatible system, creating a network of Internet scale made up of smaller sites. Seamless wall-to-wall posts and remote comments, even across different network nodes. Access lists for every item. Private conversation groups — on these pages all communications are restricted to group members. One-to-one private messaging on supported protocols. Optionally "expire" old content after a certain period of time. Download your personal data. It all belongs to you. Built-in support for ActivityPub (e.g. Funkwhale, Hubzilla, Mastodon, Pleroma, Pixelfed), OStatus (e.g. StatusNet, GNU social, Quitter) and diaspora* protocols. Support for email contacts and communications (two-way) via IMAP4rev1/ESMTP.