Browse free open source JavaScript WebSocket Servers and projects below. Use the toggles on the left to filter open source JavaScript WebSocket Servers by OS, license, language, programming language, and project status.

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  • 1
    socket.io

    socket.io

    Realtime application framework (Node.JS server)

    socket.io is a JavaScript library that allows for realtime, bi-directional communication between web clients and servers. It is composed of two parts: a Node.js server and a JavaScript client library that runs in the browser. socket.io is focused on both reliability and speed, delivering an immensely powerful, fast and yet easy to use realtime engine that’s used by just about everyone: from Microsoft Office and Zendesk to hackathon winners and small startups. It’s considered one of the most depended-upon npm modules, and works on every platform, browser or device.
    Downloads: 3 This Week
    Last Update:
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  • 2
    SockJS-client

    SockJS-client

    WebSocket emulation and Javascript client

    SockJS is a browser JavaScript library that provides a WebSocket-like object. SockJS gives you a coherent, cross-browser, Javascript API which creates a low latency, full duplex, cross-domain communication channel between the browser and the web server. Under the hood SockJS tries to use native WebSockets first. If that fails it can use a variety of browser-specific transport protocols and presents them through WebSocket-like abstractions. SockJS is intended to work for all modern browsers and in environments which don't support the WebSocket protocol, for example, behind restrictive corporate proxies. SockJS-client does require a server counterpart, such as SockJS-node, which is a SockJS server for Node.js. The API should follow HTML5 Websockets API as closely as possible. All the transports must support cross domain connections out of the box. It's possible and recommended to host a SockJS server on a different server than your main web site.
    Downloads: 2 This Week
    Last Update:
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  • 3
    Rhubarb

    Rhubarb

    A WebSocket library optimized for multiplayer JS games

    Rhubarb is a lightweight WebSocket library for multiplayer HTML5 games. It is originally designed to be used by the ROYGBIV Engine. However, it can be used outside of ROYGBIV as well. Javascript is slow, therefore we want to have as much main-process-power as we can in order to do game related calculations, graphics rendering and achieving 60 FPS. For multiplayer games achieving 60 FPS gets even more complicated given that transferring data over WebSockets is a slow operation. It also triggers GC activity by copying the transferred data (if JSON is the preferred way), which eventually slows down the main thread as well.
    Downloads: 1 This Week
    Last Update:
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  • 4
    Cux Bomberman

    Cux Bomberman

    JAVA websocket implementation for a bomberman-like game

    This application uses JAVA and Glassfish server to provide an active and simple webSocket server for an online, multiplayer bomberman-like game. It only requires a running glassfish server to deploy the application on and a MySQL database server. After deployment and first run, anyone can access your webserver, register and play the game, using only a web browser that has built-in support for webSockets
    Downloads: 0 This Week
    Last Update:
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    GhostText

    GhostText

    Use your text editor to write in your browser

    Whenever you’re writing more than a little snippet of code anywhere on the web, activate GhostText to open your preferred text editor and enjoy your own development environment. GhostText is a browser extension that connects to your editor via its own extension. Install both extensions and, if necessary, start the GhostText server in the editor’s extension. Most editor extensions are authored by third parties. You can create more extensions for your favorite editor! Refer to the protocol document. Once you have installed both browser and editor extensions, you can activate GhostText in the current browser tab by clicking its icon in the toolbar or by using a keyboard shortcut. The editor needs to be launched first. In some editors you’ll need to run the Enable GhostText command to start the server. Refer to the documentation of each extension. Sublime Text doesn’t need this step.
    Downloads: 0 This Week
    Last Update:
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  • 6
    HyperExpress

    HyperExpress

    High performance Node.js webserver with a simple-to-use API

    HyperExpress aims to be a simple yet performant HTTP & Websocket Server. Combined with the power of uWebsockets.js, a Node.js binding of uSockets written in C++, HyperExpress allows developers to unlock higher throughput for their web applications with their existing hardware. This can allow many web applications to become much more performant on optimized data serving endpoints without having to scale hardware. High-performance Node.js webserver with a simple-to-use API powered by uWebsockets.js under the hood.
    Downloads: 0 This Week
    Last Update:
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  • 7
    Nodejs Websocket

    Nodejs Websocket

    A node.js module for websocket server and client

    A nodejs module for websocket server and client. The class that represents a connection, either a client-created (accepted by a nodejs ws server) or client connection. The websocket protocol has two types of data frames: text and binary. Text frames are implemented as simple send function and receive event. Binary frames are implemented as streams: when you receive binary data, you get a ReadableStream; to send binary data, you must ask for a WritableStream and write into it. The binary data will be divided into frames and be sent over the socket.
    Downloads: 0 This Week
    Last Update:
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  • 8

    PrimeWeb Windows Control Panel

    A windows server control panel for web hosting companies

    PrimeWeb is a web-based hosting management system designed to run on Windows servers, providing an intuitive interface for managing websites, domains, databases, emails, virtual machines and server resources. Built with performance and security in mind, it allows administrators and users to efficiently deploy and maintain web hosting environments with minimal technical effort.
    Downloads: 0 This Week
    Last Update:
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  • 9
    SockJS-node

    SockJS-node

    WebSocket emulation - Node.js server

    The maintainers of SockJS and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open-source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. SockJS is a JavaScript library (for browsers) that provides a WebSocket-like object. SockJS gives you a coherent, cross-browser, Javascript API which creates a low latency, full duplex, cross-domain communication channel between the browser and the web server, with WebSockets or without. This necessitates the use of a server, which this is one version of, for Node.js.
    Downloads: 0 This Week
    Last Update:
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  • 10
    Sockette

    Sockette

    The cutest little WebSocket wrapper

    Sockette is a tiny (367 bytes) wrapper around WebSocket that will automatically reconnect if the connection is lost. In addition to attaching additional API methods, Sockette allows you to reuse instances, avoiding the need to redeclare all event listeners. You have direct access to the (current) underlying WebSocket within every EventListener callback.
    Downloads: 0 This Week
    Last Update:
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  • 11
    Vue-Socket.io

    Vue-Socket.io

    Socket.io implementation for Vuejs and Vuex

    Vue-Socket.io is a Socket.IO integration library for Vue.js and Vuex applications. It allows Vue components to listen for real-time socket events through a clean, framework-friendly API. The project helps developers connect frontend applications to Socket.IO servers without manually wiring every event listener and lifecycle behavior. It also supports Vuex integration, making it easier to route socket events into centralized state management. Vue-Socket.io is especially useful for chat apps, dashboards, notifications, collaborative interfaces, live counters, and other real-time user experiences. Because the project is centered on Vue 2-era usage, modern Vue teams should evaluate compatibility before using it in a new application.
    Downloads: 0 This Week
    Last Update:
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  • 12

    fluxychat

    Realtime chat API on Cloudflare — hosted or self-host

    FluxyChat is a multi-tenant realtime chat API built on Cloudflare Workers, Durable Objects, and D1. What's different: - One Durable Object per room: WebSocket fan-out + ordering at the edge, no socket fleet to manage - Agent tool calls stream on the same room WebSocket as chat messages — debuggable in the operator console - MIT self-host on your own Cloudflare account, or use the hosted beta - Next.js operator console: rooms, agents, billing hooks out of the box - @fluxy-chat/sdk: TypeScript SDK with React hooks, reconnect/backoff, REST history pagination Built for SaaS teams adding in-app chat without Pusher-scale bills or running persistent WS pods.
    Downloads: 0 This Week
    Last Update:
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  • 13

    pyindi-client

    Python binding to the libindi library

    This project offers a python binding to the libindi library. It uses the Simplified Wrapper and Interface Generator (SWIG). You may generate a PyIndi module which mainly defines an IndiClient class. This class could be used to build python scripts able to interact with indi servers using sendNew* methods and implementing new* methods of the BaseMediator class. PyQt applications may also be built on top of IndiClient, thus allowing rapid development of GUI Indi clients. Besides Python there are also bindings for node.js, Tcl (incomplete) and PHP (not useful). As application examples you will find a Python Websocket server with which you may build a web application interacting with Indi servers, and a simple PyQt application similar to the Kstars Indi Control Panel (was built as an exercise). Finally there is an equatorial mount 3D simulator written with Freecad and Python, planned to be connected with the PyIndi module. *** The pyindi-client binding has moved to github. ***
    Downloads: 0 This Week
    Last Update:
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  • 14
    rpc-websockets

    rpc-websockets

    JSON-RPC 2.0 implementation over WebSockets for Node.js

    The rpc-websockets library enables developers to easily implement their business logic that includes messaging between users, machines or any devices. It provides a possibility to send and receive JSON data through the WebSocket communication protocol in order to support two-way notification push, running RPC methods and firing any types of event signalling. Only clients can call RPC methods and not vice versa at the moment. Both frontend (HTML/JS-based) and backend (Node.js-based) development environments are supported.
    Downloads: 0 This Week
    Last Update:
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