Centrifugo is an open-source, scalable real-time messaging server designed for building interactive applications with instant updates—such as chat apps, live comments, multiplayer games, and real-time dashboards. While it's not a full chat platform out of the box, it can serve as a backend foundation for creating custom Slack alternatives with real-time communication capabilities.
Key features include:
- Real-time Transports: Supports WebSocket, HTTP-streaming, Server-Sent Events (SSE), WebTransport, and GRPC.
- Scalability: Built-in integrations with Redis and Nats for scaling connections across multiple nodes.
- Seamless Integration: Simple publishing API for easy integration with existing applications.
- Flexible Authentication: Provides flexible authentication mechanisms.
- Channel History: Ability to maintain channel history.
- Online Presence: Supports online presence detection.
- SDK Libraries: Official SDK libraries for web and mobile development.
- Centrifugo PRO: Offers additional features for enterprise environments, such as analytics with ClickHouse, real-time tracing, push notification API, and SSO integrations.
