JSPM

Add real-time speech to text functionality into your website with no effort

Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js

Advanced React speech-to-text library with real-time audio analysis and comprehensive speech metrics

React hook for Cheetah Web SDK

The editing engine of CKEditor 5 – the best browser-based rich text editor.

The core architecture of CKEditor 5 – the best browser-based rich text editor.

A set of ready-to-use rich text editors created with a powerful framework. Made with real-time collaborative editing in mind.

3-dimensional physics engine in Rust - official JS bindings. Compatibility package with inlined webassembly as base64.

Advanced iOS speech-to-text module for Expo with multi-language support, audio visualization, and real-time transcription

Publish & Subscribe Real-time Messaging with PubNub

JavaScript client SDK for bidirectional communication with Centrifugo and Centrifuge-based server from browser, NodeJS and React Native

[](https://www.npmjs.com/package/@n1ru4l/graphql-live-query) [](https://www.npmjs.com/package/@n1ru4l/

Build real-time applications powered by [Durable Objects](https://developers.cloudflare.com/durable-objects/), inspired by [PartyKit](https://www.partykit.io/).

A lightweight JavaScript SDK for real-time audio and text processing via Speaqr's public api.

A set of React hooks and providers to use Liveblocks declaratively. Liveblocks is the all-in-one toolkit to build collaborative products like Figma, Notion, and more.

A client that lets you interact with Liveblocks servers. Liveblocks is the all-in-one toolkit to build collaborative products like Figma, Notion, and more.

Base utilities used by CKEditor 5 collaboration features to support multiple users working together in a rich text editor.

Collaborative comments feature for CKEditor 5.

A set of CKEditor 5 features enabling real-time collaboration within the editor using CKEditor Cloud Services.

Base utilities used by CKEditor 5 collaboration features to support multiple users working together in a rich text editor.

CKEditor 5 track changes plugin.

CKEditor 5 operations compressor for real-time collaboration.

CKEditor Cloud Services Collaboration low-level API is required by CKEditor 5 Collaboration features to enable real-time collaborative editing in CKEditor 5.

A server-side utility that lets you set up a Liveblocks authentication endpoint. Liveblocks is the all-in-one toolkit to build collaborative products like Figma, Notion, and more.

Sendbird UIKit for React: A feature-rich and customizable chat UI kit with messaging, channel management, and user authentication.

Client for the Speechmatics real-time API

A cryptocurrency trading API with more than 100 exchanges in JavaScript / TypeScript / Python / C# / PHP / Go

A set of React pre-built components for the Liveblocks products. Liveblocks is the all-in-one toolkit to build collaborative products like Figma, Notion, and more.

The HTML5 Server-Sent events specification is introduced "to enable servers to push data to Web pages over HTTP or using dedicated server-push protocols".

Streams.

Library for fetching temporary keys for Speechmatics APIs

Dead simple, dependency-less, spec-compliant server-sent events implementation written in TypeScript.

Publish & Subscribe Real-time Messaging with PubNub

Integrate your existing or new Yjs documents with Liveblocks.

PartyKit simplifies developing multiplayer applications. Everything's better with friends.

Real-time audio processing for voice, in web browsers

Primus is a simple abstraction around real-time frameworks. It allows you to easily switch between different frameworks without any code changes.

A Vue plugin that makes integrating ActionCable easy.

Shared logic for building live query patch implementations.

[](https://www.npmjs.com/package/@n1ru4l/in-memory-live-query-store) [](https://www.np

React hooks for interacting with the Speechmatics Real-Time API

Sendbird UIKit for React Native: A feature-rich and customizable chat UI kit with messaging, channel management, and user authentication.

A middleware for Zustand to automatically synchronize your stores with Liveblocks. Liveblocks is the all-in-one toolkit to build collaborative products like Figma, Notion, and more.

Backendless RT Client for connect to Backendless RT Server

A Storybook add-on for live editing stories. Supports React and TypeScript.

This package includes the resources needed to write a Lightstreamer client.

Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js

Velt is an SDK to add collaborative features to your product within minutes. Example: Comments like Figma, Frame.io, Google docs or sheets, Recording like Loom, Huddles like Slack and much more.

[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][deps-svg]][deps-url] [![dev dependency status][dev-deps-svg]][dev-deps-url] [![License][license-image]][license-url] [![Downloads][downloads-im

A set of functions and utilities to make sending emails based on Liveblocks notification events easy. Liveblocks is the all-in-one toolkit to build collaborative products like Figma, Notion, and more.

A set of React hooks for integrating Sendbird chat functionality into your React app.

Velt is an SDK to add collaborative features to your product within minutes. Example: Comments like Figma, Frame.io, Google docs or sheets, Recording like Loom, Huddles like Slack and much more.

A Server-Sent-Event module bringing real-time capabilities to AdonisJS.

An integration of TipTap + React to enable collaboration, comments, live cursors, and more with Liveblocks.

Server-Sent Events "channel" where all messages are broadcasted to all connected clients, history is maintained automatically and server attempts to keep clients alive by sending "keep-alive" packets automatically.

This package includes the resources needed to write a Lightstreamer client.

A framework agnostic Server-Sent-Event library

Hazelcast - a real-time stream processing platform - Node.js Client

[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][deps-svg]][deps-url] [![dev dependency status][dev-deps-svg]][dev-deps-url] [![License][license-image]][license-url] [![Downloads][downloads-im

React components for [Stripe.js and Elements](https://stripe.com/docs/stripe-js).

Real-time audio transcription in the browser using OpenAI's Whisper model via WebAssembly

JSON-RPC 2.0 client/server/peer for any reliable transport. Inter-process communication. REST. WebSocket. WebWorker. Out of order messaging or in-order byte streams

Server-Sent Events (SSE) support for Fetcher HTTP client with native LLM streaming API support. Enables real-time data streaming and token-by-token LLM response handling.

MCP server for real-time audio transcription using OpenAI Whisper

To install dependencies:

Security-focused IP-based rate limiter for detecting and banning hackers, bots, and malicious users. Features automatic IP banning, threat detection, analytics, and multi-channel alerts.

A server-side utility that lets you modify prosemirror and tiptap documents hosted in Liveblocks.

Drop-in replacement for Dolby/Voxeet SDK using Odyssey Spatial Audio Service

Velt is an SDK to add collaborative features to your product within minutes. Example: Comments like Figma, Frame.io, Google docs or sheets, Recording like Loom, Huddles like Slack and much more.

An integration of Lexical + React to enable collaboration, comments, live cursors, and more with Liveblocks.

This package includes the resources needed to write a Lightstreamer client.

2-dimensional physics engine in Rust - official JS bindings. Compatibility package with inlined webassembly as base64.

3-dimensional physics engine in Rust - official JS bindings.

An integration of BlockNote + React to enable collaboration, comments, live cursors, and more with Liveblocks.

A Vue.js voice agent plugin for real-time voice communication via WebSocket

Connectic is a javascript library for pub sub messaging, event handling, and data synchronization in real-time applications.

[](https://www.npmjs.com/package/@n1ru4l/graphql-live-query-patch-jsondiffpatch) [![npm downloads](https://img.shields.io/npm/dm/@n1ru4l/graphql-live-query-patc

Supersonic reverse matching engine

Enterprise RAG module with chat context storage, vector search, and session management. Complete chat history retrieval and streaming content extraction for Electron apps.

<h3 align="center"> @merger203/expert-invention </h3>

Virtual Chat SDK - Floating chat widget with 20+ languages support for seamless website integration

HarperDB is a distributed database, caching service, streaming broker, and application development platform focused on performance and ease of use.

🚀 Modern HTTP client with fetch-first design, plugin architecture, and security features. Works across all platforms with automatic cookie management and SSRF protection.

SDK for API integration (Pure Cloud-First - Delta Chunking only)

2-dimensional physics engine in Rust - official JS bindings. Compatibility package with inlined webassembly as base64.

A store enhancer to integrate Liveblocks into Redux stores. Liveblocks is the all-in-one toolkit to build collaborative products like Figma, Notion, and more.

2-dimensional physics engine in Rust - official JS bindings.

Complete SDK pack for MSI React Native (Map Service Interface) and DClient services

Client for the coinbase-pro API

Sendbird UIKit for React Native: A feature-rich and customizable chat UI kit with messaging, channel management, and user authentication.

A node library to control your sonos devices, written in typescript

TypeScript client SDK for TTC Speech Service - Real-time Speech-to-Text and Text-to-Speech with WebSocket streaming

Tiptap Extension to add Google Docs-style overlay comments to your Tiptap editor. Works with the Velt Collaboration SDK.

Velt is an SDK to add collaborative features to your product within minutes. Example: Comments like Figma, Frame.io, Google docs or sheets, Recording like Loom, Huddles like Slack and much more.

[](https://www.npmjs.com/package/@n1ru4l/socket-io-graphql-server) [](https://www.npmjs.co

Replace Strapi default WYSIWYG editor with enhanced build of CKEditor 5

Temasys Web SDK is an open-source client-side library for your web-browser that enables any website to easily leverage the capabilities of WebRTC and its direct data streaming powers between peers for audio/video conferencing or file transfer.

High-quality audio recording Capacitor plugin with native iOS & Android support. Features pause/resume, microphone management, real-time monitoring, audio trimming, and comprehensive mobile audio recording capabilities.

A Vue library for integrating Monaco Editor with Shiki syntax highlighting, supporting real-time updates.

A modern web-based terminal and monitoring interface for Claude Flow with real-time system monitoring and tmux integration

Real-time web framework

An installer for Liveblocks projects, including various examples and a Next.js starter kit. Liveblocks is the all-in-one toolkit to build collaborative products like Figma, Notion, and more.

A WebSocket-based TTS client with real-time audio streaming and playback

CKEditor 5 build for Strapi WYSIWYG editor replacement

Rivulex is a high-performance messaging library leveraging Redis Streams for reliable event-driven communication within distributed systems.

Emergent intelligence through temporal consciousness - thousands of nano-agents collaborating in real-time with 500K+ ops/sec

The customize full features for classic editor build of CKEditor 5 – the best browser-based rich text editor. Thanks for CKEditor.

A lightweight Node.js package to get real-time currency exchange rates for any base currency using a pivot currency, fetched directly from a CDN for fast and reliable access.

MigratoryData Client API for JavaScript/Node.js

Sendbird UIKit for React: A feature-rich and customizable chat UI kit with messaging, channel management, and user authentication.

Slate Extension to add Google Docs-style overlay comments to your Slate editor. Works with the Velt Collaboration SDK.

A server-side utility that lets you modify lexical documents hosted in Liveblocks.

wrapper built upon ws module that provides standard server api only.

Sendbird Calls SDK for React Native: Empower React Native apps with seamless audio, video, and group calling. Build interactive communication easily.

Complete React ticket/messaging system component library with Persian authentication, custom modals, and professional UI/UX

Custom CKEditor5 component build for Wiki.js

Modern Angular chat widget with WebSocket and Demo modes. Built with Angular 17+ Standalone Components and Signals.

A Node.js package for various biosensors and associated biosignals.

Real-time messaging framework

A React chat widget component for customer-supplier communication

The classic editor build of CKEditor 5 – the best browser-based rich text editor.

Fork of Sendbird UIKit for React to implement additional functionality for We Are Sweet projects

Server-sent event driver for Laravel Echo and broadcasting system.

A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading library with support for 130+ exchanges

The customize full features for classic editor build of CKEditor 5 – the best browser-based rich text editor. Thanks for CKEditor.

A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading library with support for 100+ exchanges

Real-time metric graphs in the terminal

Server-Sent Events plugin for Fastify

The Universal Real Time Event Dispatcher

A set of React hooks for integrating Sendbird chat functionality into your React app.

A Node.js client library for the Aristech Speech-to-Text API

This is the client js sdk for cutting-edge Samvyo real-time voice/video cloud.

A powerful and customizable help center widget for Angular applications with real-time chat functionality, AI assistance, multi-language support, and user feedback collection.

sec.gov EDGAR API Wrapper

A modern **React SIP.js toolkit** for building web softphones and SIP clients. Supports **audio/video calls**, **call recording**, **screen sharing**, and **device management**, all with a clean, extensible, TypeScript-first architecture.

Unleash the future of data management with the ultimate platform for secure, scalable, and dynamic data operations. Power the next generation of applications by combining advanced encryption, revolutionary real-time querying, and seamless synchronization

Real-time streaming AI consensus platform with HTTP+SSE MCP integration for Claude Code, VS Code, Cursor, and Windsurf - powered by OpenRouter's unified API

Instant team document sharing - Drop markdown files, sync with your team in real-time

2-dimensional physics engine in Rust - official JS bindings. Compatibility package with inlined webassembly as base64.

A custom CKEditor 5 build made by the CKEditor 5 online builder and adapted to be used inside Renku UI.

A real-time, lightweight server designed to enable multiplayer experiences for games built with the Inglorious Engine.

Real-time file sharing for Cursor AI outputs with team collaboration

The most advanced ORM for Apache Cassandra and ScyllaDB with native TypeScript support, AI/ML integration, and enterprise-grade features

The classic editor build of CKEditor 5 – the best browser-based rich text editor. This specific build includes more plugins. See the README document for more information.

AI-powered Storybook story generator with dynamic component discovery

Patterns and utilities for handling registration of metadata and functionality for run-time use

🎙️ A lightweight React hook for audio recording using native Web APIs (MediaRecorder, getUserMedia). Start, stop, pause, resume audio recordings with customizable callbacks. Perfect for voice notes, interviews, podcasts, and real-time audio processing in

Official TalkLynk SDK for video calling and chat integration

CKEditor 5 Classic Plus is a custom build built on top of CKEditor 5 Build - Classic (version: 41.3.0). It adds Simple Upload Adapter, Image Resize, Font Styling and much more to the official build.

Display dynamic real-time information about running Node.js process

LLMPerf - Real-time performance testing tool for OpenAI-compatible LLM services with beautiful web UI

WebSocket streaming SDK for real-time WioEX market data

AI Dev Workflow TMUX Visualization System - Real-time monitoring dashboards with vibrant cyberpunk color theme

The classic editor build of CKEditor 5 – the best browser-based rich text editor.

Ceeblue WebRTC Client

Multiuser for Static Web Apps by Running Server Code in Synced Client VMs

This Node package for Azure Relay Hybrid Connections is built on and extends the ['ws'](https://www.npmjs.com/package/ws) NPM package. This package re-exports all exports of that base package and adds new exports that enable integration with the Azu

Makes your code coverage a real time live source

A virtualized chat component for React applications.

React hooks for building AI chat interfaces with AgentKit

Javascript SDK for integrating with Flamelink CMS

YJS network provider for ElectricSQL

GenosDB (GDB): distributed graph database in real-time, peer-to-peer, scalable storage - efficient querying of complex relationships.

Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js

The classic editor build of CKEditor 5 – the best browser-based rich text editor.

Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js

Framework-agnostic Tensorchat.io streaming client for concurrent LLM prompting

CLI tool for the Crablr platform that enables real-time payment monitoring and webhook forwarding for merchants and developers.

Custom (Add extra plugins). The classic editor build of CKEditor 5 – the best browser-based rich text editor.

The Goldsky CLI to deploy subgraphs, index & transform blockchain data, configure webhooks, and access your data in real-time.

Real-time client/server communication over UDP using WebRTC and Node.js

React hooks for building AI chat interfaces with AgentKit

React component for communicating with the rtcmesh-server

Real-time noise suppression for audio using Dual-Signal Transformation LSTM Network (DTLN)

🚀 The ultimate CLI coding assistant powered by AI - Generate code, analyze projects, and build applications with natural language commands

3-dimensional physics engine in Rust - official JS bindings. Compatibility package with inlined webassembly as base64.

Real-time WebSocket transport for event sourcing with Effect - Stream events to browsers and clients with type-safe, resilient real-time communication

Real-time client/server communication over UDP using WebRTC and Node.js

Advanced performance monitoring with browser extension capabilities - Premium tier of KanmiPerf

High-performance Node.js NAPI bindings for OpenCV 4.12.0 - Complete Computer Vision Library

A utility for reading and parsing JSON streams in real-time

Dependency registration/management and injection support.

Batteries-included WebSocket event sourcing package - Complete WebSocket transport with default protocol for rapid event sourcing development

🚀 The most comprehensive, production-ready affiliate management system for Node.js with advanced commission tracking, multi-tier programs, payment processing, AI-powered fraud detection, and enterprise-grade analytics. Perfect for e-commerce, SaaS, and d

The classic editor build of CKEditor 5 – the best browser-based rich text editor.

Extended verison of the classic editor build of CKEditor 5

Metroplex is capable of transforming into a battle station, giant robot or a distributed connect client directory for Primus.

React hook for Azure/fetch-event-source. For making Event Source requests, with all the features of fetch()

Publish & Subscribe Real-time Messaging with PubNub

🚀 High-performance real-time collaborative form web component with WebSocket support. Perfect for multi-user forms, live editing, and instant synchronization.

This is a set of fully customizable Angular components for visualizing data.

Enterprise-grade React hooks for Next.js + Odoo development - Complete with React Query-level features, real-time capabilities, and developer tools

Customer support chat widget for Ticketping - Intercom-like experience with real-time messaging

Create a stream of Sequelize create, update, and destroy events.

The lightweight classic editor build of CKEditor 5 with Base64 image upload adapter.

2-dimensional physics engine in Rust - official JS bindings.

The classic editor build of CKEditor 5 + Mathtype – the best browser-based rich text editor.

Client SDK for EnSync Engine - gRPC and WebSocket support

Modern universal validation library with Vue 3, JavaScript support, and upcoming React & Angular integrations

WebSocket transport implementation for event sourcing - Protocol-agnostic message transport over WebSocket connections

The classic editor build of CKEditor 5 – the best browser-based rich text editor.

Elasticsearch backing for the travetto model module, with real-time modeling support for Elasticsearch mappings.

Tajriba client

A lightweight Server-Sent Events (SSE) library for Next.js, enabling real-time, unidirectional data streaming from server to client

The inline editor build of CKEditor 5 – the best browser-based rich text editor.

BunPulse is a lightweight, high-performance WebSocket server built on Bun, fully compatible with the Pusher protocol. Easily implement real-time communication for your applications with minimal setup.

Unified streaming client for WebSocket, SSE, HTTP streaming, long-polling, HLS, and WebRTC.

A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges

A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading library with support for 100+ exchanges

Live real-time avatar

Minimalist WebSocket client and server for real-time applications with RPC, PubSub, Rooms and Game state synchronization.

Real-time audio processing for voice, in web browsers

SQL backing for the travetto model module, with real-time modeling support for SQL schemas.

A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading library with support for 130+ exchanges

The document editor build of CKEditor 5 – the best browser-based rich text editor.

A comprehensive Angular comment library with real-time features, voting, replies, and event emitters

The zkteco library allows Node.js developers to easily interface with ZK BioMetric Fingerprint Attendance Devices, extract and manage data, and integrate biometric features into attendance systems efficiently.

Yantra.gg Serverless Physics SDK for Real-time Multiplayer Game Development

Comprehensive audio library with progressive streaming, recording capabilities, real-time processing, and intelligent caching for web applications

A modernized RabbitMQ library for React Native, updated for compatibility with the latest React Native versions.

SDK for fetching and streaming real-time and historical crypto prices using Bitquery's Trading API. Provides easy-to-use functions for token prices, OHLC candles, market data, and WebSocket streams.

Create interactive, collaborative html elements with a single attribute

A modern, configurable Apollo Link for handling GraphQL subscriptions via Pusher. Built with TypeScript and designed for Laravel Lighthouse.

A lightweight, framework-agnostic SDK for Agent WebSocket/SignalR communication

[](https://nodei.co/npm/event-broadcast/)

SignalR client library built on top of @microsoft/signalr. This gives you more features and easier to use.

The classic editor build of CKEditor 5 – the best browser-based rich text editor.

Open Source Unified REST API of 100+ Crypto Exchange Sites

<!-- [](https://github.com/vaultrice/react-components/actions?query=workflow%3Anode) --> [![npm version](https://img.shields.io/npm/v/@vaultrice/react-components.svg?style=fla

Official JavaScript/TypeScript SDK for Variably feature flags, experimentation, and real-time dynamic configurations

Minimal eye tracking core library for WebSocket-based hardware eye trackers

Empirica Core

Webcom library

A high-performance spectrum analyzer library for RF signal processing, supporting real-time spectrum analysis, waterfall display, and multi-segment frequency scanning

WebSocket-based multiplayer game framework for real-time, event-driven gameplay

🚀 A powerful state management library with collaborative inspector, real-time debugging, store snapshots, and IDE integration. Features include share snapshots, locate stores in code, and team collaboration tools.

The document editor build of CKEditor 5 – the best browser-based rich text editor.

A TypeScript/JavaScript SDK for Vaultrice - persistent, encrypted, real-time key-value storage

React native chat easy to use and integrate

A library to seamlessly add real-time multi-user interaction to your React app!

3-dimensional physics engine in Rust - official JS bindings.

Open-source creative coding framework for distributed applications based on Web technologies

2-dimensional physics engine in Rust - official JS bindings.

Multi Exchange Crypto Currency Trading bot, Data Analysis Library and Strategy Back testing Engine

Your friendly TypeScript companion for Washington State transportation APIs - WSDOT and WSF data with smart caching and React Query integration

Variables that support multi-user collaboration and persistence, making collaboration and variable operations as simple as possible, with strict and well-defined type hints.

Realtime apps with a high level API based on engine.io

A node.js framework for real-time applications over UDP and TCP protocols with extendable modules for quick and clean evelopment.

The flagship entity framework for building scalable, reusable, and visually stunning entities.

Gets UTC real time from http://worldtimeapi.org/api/timezone/Etc/UTC.