Fediverse
More info
- Type
- Federated networks
- Wikipedia
- en.wikipedia.org
Umbrella name for federated social platforms that speak ActivityPub — Mastodon, Pleroma, PeerTube (video), Pixelfed (photos), Lemmy (link aggregation), Misskey, Bookwyrm (books).
Model: thousands of independent servers ("instances") that follow each other. A user on mastodon.social can follow one on pixelfed.fr and see photos in their Mastodon feed. Moderation is instance-local — each admin sets the rules.
Size ~15 million accounts in 2025, fragmented across ~30 000 instances. Threads (Meta) now interoperates via an ActivityPub pilot. Conceptual opposite: walled gardens like Facebook, Instagram, Twitter.