Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once and forever.
- Language
- Go
- Licence
- Apache-2.0
- Stars
- 11k
- Latest
- v6.9.7
- Last push
- 2026-10-06
Real-time messaging servers
Push events from a backend to browsers and apps over WebSocket or Server-Sent Events, with channels and presence.
Changes in this category (RSS)
Side by side
| Tool | Stars | Licence | Terms | Self-hosted | Language | Latest | Last push |
|---|---|---|---|---|---|---|---|
| Centrifugo | 11k | Apache-2.0 | Open source | Yes | Go | v6.9.7 | 2026-10-06 |
| Mercure | 5.3k | AGPL-3.0 | Open source | Yes | Go | v1.0.4 | 2026-10-06 |
| Sockudo | 819 | MIT | Open source | Yes | Rust | v5.1.0 | 2026-10-06 |
3 tools
🪽 An open, easy, fast, reliable and battery-efficient solution for real-time communications
Blazingly fast pusher drop-in replacement written in rust