* [Fedify 2.0.0](https://github.com/fedify-dev/fedify) – TypeScript framework for building federated server applications using ActivityPub and related standards. * [Misskey 2026.3.0](https://github.com/misskey-dev/misskey) – Federated social media platform with open source and free usage. * [stegodon v1.8.0](https://github.com/deemkeen/stegodon) – SSH-first federated blogging platform with terminal TUI, ActivityPub federation, RSS feeds, and web interface. * [Bonfire Networks v1.0.2](https://github.com/bonfire-networks/bonfire-app) – Framework for building federated digital spaces that let communities gather, interact, and customize experiences. * [Hollo 0.7.5](https://github.com/fedify-dev/hollo) – Federated single-user microblogging software implementing Mastodon-compatible APIs for ActivityPub federation.