WebSockets and realtime

12-month change compares the average of the last 4 weeks of downloads with the first 4 weeks of the 52-week series. Gzip size is for the whole package, as measured by Bundlephobia. "-" means the value has not been fetched.

• ncalayer-js-clientJS клиент для NCALayer стремящийся быть максимально простым в использовании
• storyboard-listener-consoleEnd-to-end, hierarchical, real-time, colorful logs and stories
• @workerdeck/clientTyped WorkerDeck protocol client for browsers and Node: REST session management plus a WebSocket attach with auto-reconnect and replay-from-last-seq. Uses the platform's fetch and WebSocket; zero runtime deps.
• jsonrpc-websocket-clientJSON-RPC 2 over WebSocket
• bitget-apiComplete Node.js & JavaScript SDK for Bitget V1-V3 REST APIs & WebSockets, with TypeScript & end-to-end tests.
• node-red-contrib-home-assistant-websocketNode-RED integration with Home Assistant through websocket and REST API
• primus-multiplexSimple multiplexing for Primus
• voicerun-reactReact client for the VoiceRun Agents API
• @workerdeck/serverThe WorkerDeck gateway: HTTP + WebSocket session server over @workerdeck/core. Session registry (create/list/attach/interrupt/kill), pluggable auth hook, replay-from-seq attach. Runs anywhere Node runs - needs a real filesystem (no serverless).
• @liveblocks/react-lexicalAn integration of Lexical + React to enable collaboration, comments, live cursors, and more with Liveblocks.
• @neta-art/cohubCohub SDK for spaces, sessions, boards, and realtime agent collaboration.
• react-websocketReactJS Websocket Listener Component
• itty-socketsWebSockets : simplified and minified.
• @getdashfy/serverDashfy server with real-time data streaming and multi-dashboard support
• asyncapi-rust-ws-templateRust WebSocket client template for AsyncAPI Generator
• @rest-hooks/coreHigh performance reactive framework for async data.
• ip-reportWebSocket client for reporting IP to server
• stomp-broker-jsSimple STOMP 1.1 Broker for nodejs http applications.
• realtime-bpm-analyzerRealtime BPM detection library for the browser — file, microphone, and stream audio. AudioWorklet-native, zero dependencies, TypeScript-first.
• @falcondev-oss/expo-event-source-polyfillA polyfill for the EventSource API in Expo using `expo/fetch`
• trackingA modern approach for Computer Vision on the web.
• open-agents-aiAI coding agent powered by open-source models (Ollama/vLLM) — interactive TUI with agentic tool-calling loop
• react-native-use-websocketReact Native Hook designed to provide robust WebSocket integrations to your Components.
• pwsA Persistent WebSocket wrapper
• wwwsa worldwide (node, bun, & deno) websocket socks5/h proxy implementation
• @venizia/ignisHigh-performance TypeScript server infrastructure combining LoopBack 4 enterprise architecture (decorator-based DI, repository pattern, component system) with Hono speed (~140k req/s). Features auto-generated OpenAPI docs, Drizzle ORM type-safe SQL, JWT/B
• @algonauti/ember-cablePower your ember.js application with actioncable
• @sayknow-cli/bridge-clientTransport-only v3 SDK WebSocket client
• bro-frameworkThe No-BS Backend Framework for Node.js
• webmaxsocketNode.js client for Max Messenger: QR, token, SMS auth, 2FA, device sessions (TCP)
• @selleo/graphql-google-pubsubA graphql-subscriptions PubSub Engine using Google PubSub
• @vertx/eventbus-bridge-client.jsVert.x Event Bus Bridge Client
• @skgdev/socket.io-msgpack-javascriptsocket.io parser based on msgpack
• @n1ru4l/socket-io-graphql-client[](https://www.npmjs.com/package/@n1ru4l/socket-io-graphql-client) [](https://www.npmjs.co
• @n1ru4l/socket-io-graphql-server[](https://www.npmjs.com/package/@n1ru4l/socket-io-graphql-server) [](https://www.npmjs.co
• gulp-server-livereloadGulp plugin to run a local webserver with livereload enabled via socket.io. Also comes with standalone command-line interface.
• qktoolThis is a collection of tools, independent of any other libraries
• pg-notifyPostgres pubsub client
• @butlerbot/sdkThe official ButlerBot SDK
• @omniaura/scenario-simDeterministic scenario simulator for frontend QA: stateful CRUD routes, seeded RNG, virtual clock, response sequences, faults and overrides, SSE and WebSocket routes with scheduled events and resume, per-run isolation, inspectable event log. Runtime-neutr
• @wrongstack/webui-serverWrongStack WebUI HTTP/WebSocket server module — extracted from @wrongstack/webui in PR #243/244 to remove the CLI -> @wrongstack/webui/server cross-package edge (audit §3.1.1). Pure backend: HTTP routes, WebSocket handlers, MCP tool wrappers, HTML serving
• @antelopejs/interface-apiAntelopeJS interface for HTTP API with decorator-based controllers and WebSocket support
• @yefengr/remote-piBrowser PWA remote control for Pi coding agent endpoints over a Relay.
• haraka-plugin-watchWatch live SMTP traffic in a web interface
• @maroonedsoftware/jobbrokerA flexible background job processing library with support for scheduled and on-demand jobs.
• @omghax/ember-mock-socket-shimEmber shim for mock-socket
• @rest-vir/apiDefine a declarative and type safe REST API and connect to it from a client.
• @wrongstack/webui-protocolWire-protocol contracts shared between the @wrongstack/webui + @wrongstack/simpleui frontends and the @wrongstack/webui-server backend. Browser-safe: depends only on @wrongstack/core types (no ws, no node-only APIs). Extracted in 2026-08 to remove the web
• cent.jsJavascript library to communicate with Centrifugo HTTP API
• @inertia-cable/reactReact hooks for InertiaCable - ActionCable integration for Inertia.js

• ws vs sockjs
• ws vs sockjs-client
• @copilotkit/aimock vs mock-socket
• partysocket vs reconnecting-websocket