Bettermode
Customizable customer community with AI-powered moderation.
Open-Source Projects
Discover top open-source software, updated regularly with real-world adoption signals.
Discover top open-source software, updated regularly with real-world adoption signals.
Self‑hosted, federated microblogging platform powered by ActivityPub
Mastodon lets you run your own social network server with real‑time timelines, media sharing, robust moderation, and full ActivityPub federation, enabling seamless interaction across the Fediverse.
Mastodon provides a self‑hosted microblogging server that connects to the broader Fediverse through the ActivityPub protocol. Users can publish text, images, videos, and links, while enjoying real‑time chronological timelines and robust moderation controls such as private posts, phrase filtering, muting, and reporting.
The platform runs on Ruby on Rails, PostgreSQL, Redis, and Node.js, and ships with ready‑to‑use Docker and docker‑compose configurations, as well as Helm charts, Heroku, and Scalingo guides. Its OAuth2 provider and REST/Streaming APIs enable third‑party apps and custom integrations, giving developers full flexibility to build on top of a standards‑based, vendor‑free social network.
Mastodon is released under the AGPL‑3.0 license and benefits from an active community that contributes code, documentation, and visual regression testing via BrowserStack and Chromatic. This collaborative model ensures regular security updates and feature enhancements, making it a reliable foundation for both hobbyist and enterprise deployments.
When teams consider Mastodon, these hosted platforms usually appear on the same shortlist.
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Campus community hub
Students and staff share announcements, events, and media while maintaining campus‑level moderation and privacy.
Open‑source project discussion board
Contributors coordinate releases, post updates, and interact with the broader Fediverse without relying on third‑party platforms.
Non‑profit advocacy network
Activists broadcast campaigns, gather supporters, and control data sovereignty across federated instances.
Corporate internal microblog
Employees post updates, share knowledge, and integrate with existing SSO via OAuth2, keeping communications on‑premise.
ActivityPub is an open, decentralized social networking protocol that enables Mastodon instances to communicate with each other and with other compatible services in the Fediverse.
You can self‑host, or use a hosted provider; Mastodon’s code works on any server that meets the Ruby, PostgreSQL, Redis, and Node.js requirements.
Mastodon supports OAuth2 and can be linked to external identity providers, allowing SSO integration for organizations.
Official Docker and docker‑compose files, Helm charts, and guides for Heroku and Scalingo make deployment possible on most cloud or on‑premise environments.
Several third‑party mobile clients exist for iOS and Android, leveraging Mastodon’s public API, though the core project does not ship an official app.
Project at a glance
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