ActivityPub server designed for efficient small to medium installs that can host multiple domains on one deployment; described by its authors as beta software.
Source: Official website. Last checked 2026-09-18. Spot an error? Tell us.
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Lightweight fediverse server forked from Pleroma and aimed at small and mid-sized communities. Speaks the Mastodon-compatible API so most third-party clients work.
Open protocol behind Bluesky for portable accounts, self-hosted data servers and third-party feeds and apps, with specifications, SDKs and developer guides.
Community-run infrastructure and tooling on the AT Protocol, including feeds and moderation services governed by the communities that use them.
Social app built on the AT Protocol, where account hosting, feeds and moderation services can come from different providers. The flagship app is open source.
Official container image, compose file and documentation for running your own AT Protocol Personal Data Server so account data lives on your infrastructure.
Modular framework for building community-owned social spaces that connect to the wider open social web on the community's own terms.