Pleroma
A microblogging server software that can federate other servers that support ActivityPub. it will federate with all servers like Friendica, GNU Social, Hubzilla, Mastodon, Misskey, Peertube, and Pixelfed.
Photon
A replacement for Lemmy-ui with more features, a better design, and more customizability. It includes Photon UI + Lemmy
Misskey
Misskey is an open-source microblogging, federated social media platform that's free forever!
Pixelfed
Pixelfed is a fediverse decentralized social network for image sharing. Unlike other platforms with features similar to those of the social network Instagram.
Mastodon
Mastodon is a free fediverse, open-source social network server with OpenSearch for indexing.
Element
Create your community based on Matrix protocol
PeerTube
Free software to take back control of your videos for the Fediverse
Castopod
Self-host your podcasts with ease, keep control over what you create, and talk to your audience without any middleman. Your podcast and your audience belong to you and you only.
Owncast
Owncast is a free and open source live video and web chat server for use with existing popular broadcasting software.
Friendica
A Decentralized Social Network, you can use to host your own social media server that forms one part of the fediverse, an interconnected and decentralized network of independently operated servers
Lemmy
Open-source Reddit alternative. Create your own discussion platform with Lemmy
KBIN
A reddit-like content aggregator and micro-blogging platform for the fediverse.