WebSockets & Realtime Packages
Realtime communication libraries for WebSockets, pub/sub channels, and live data sync — the building blocks behind chat, presence, and collaborative UIs.
Packages in WebSockets & Realtime
Kind
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ws
A simple, blazing-fast, thoroughly tested WebSocket client and server library for Node.js.
undici
A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies
Socket.IO
Bidirectional, low-latency, event-based realtime communication for Node.js and the browser.
websocket
A fast, RFC 6455-compliant WebSocket implementation for Go with full control over framing, compression, and concurrency.
@hono/node-server
The official Node.js adapter that runs your Hono application on a native Node HTTP server using web-standard APIs.
websockets
Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.
tokio-tungstenite
Asynchronous, Tokio-native WebSocket streams built on tungstenite
http-proxy-middleware
The one-liner Node.js proxy middleware for connect, express, next.js, hono, and more.
Slack SDK for Python
The official Python SDK for building apps, bots, and integrations on the Slack Platform.
Socket.IO Redis Adapter
Scale Socket.IO across multiple server instances by broadcasting events through Redis
partysocket
A drop-in, auto-reconnecting WebSocket client with message buffering and React hooks
websocket-client
A low-level, dependency-free WebSocket client for Python supporting both synchronous and event-driven connections.
python-socketio
Python implementation of the Socket.IO realtime protocol for both servers and clients.
@fastify/websocket
Adds first-class WebSocket route support to Fastify, dispatching every upgrade through Fastify's own hooks and router instead of bolting ws on beside it.
bufferutil
Native buffer masking and unmasking utilities that make the ws WebSocket library fast.
oRPC Client
Type-safe client for consuming oRPC and OpenAPI APIs over HTTP, WebSocket, or message ports.
websocket
Minimal, idiomatic Go WebSocket library with full context.Context support, zero dependencies, and Wasm compatibility.
tungstenite
A lightweight, stream-based WebSocket protocol implementation for Rust, runtime-agnostic by design
ws
A zero-allocation Go library for building fast, low-level RFC 6455 WebSocket servers and clients.
sockjs-client
Browser WebSocket emulation library that automatically falls back across streaming and polling transports for reliable realtime connections.
chrome-remote-interface
A Node.js client for the Chrome DevTools Protocol, exposing every browser command, event, and type as a plain JavaScript API.
GramJS
Full-featured MTProto client for building Telegram user bots and apps in Node.js and browsers
stompjs
A JavaScript and TypeScript STOMP client for connecting browsers and Node.js apps to WebSocket message brokers.
python-engineio
Python implementation of the Engine.IO realtime transport protocol powering Socket.IO servers and clients.
