Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably. Set up once and forever.

Realtime server for reliable two-way communication to power-up any backend

Real-time messaging library for Go. The simplest way to add feature-rich and scalable WebSocket support to your application. The core of Centrifugo server.

Server Sent Events server and client for Golang

Fully featured, spec-compliant HTML5 server-sent events library

KaGo

Server-Sent Events for Go

🚀A next-generation HTTP client for Golang, Support for http1, http2, http3, websocket, sse, utls, uquic

Making it easier to push pubsub events directly to the browser.

🏄 High-performance Server-Sent Events endpoint for Go

HTML5 Server-Sent-Events for Go

Pulsar Beam is a streaming service via HTTP built on Apache Pulsar.

Ostraka is an open-source project that simplifies event synchronization in microservice architectures. It collects events from various sources and transforms them into Server-Sent Events (SSE) or email notifications for easy consumption in the user interface.

Open Source Realtime Tracking System

c-lightning RPC over HTTP with fine-grained permissions, SSE and spark-wallet support

SSE over QUIC protocol

➿ Watch filesystem changes recursively

SSE Swiss Army Knife for Go

An efficient memset implementation for Golang. [Not maintained].

A k6 extension for Server-Sent Events (SSE)