Open Source Linux WebSocket Libraries
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WebSocket Libraries for Linux
View 1635 business solutionsBrowse free open source WebSocket Libraries and projects for Linux below. Use the toggles on the left to filter open source WebSocket Libraries by OS, license, language, programming language, and project status.
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1
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. -
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Mongoose Embedded Web Server
An embedded web server
Mongoose is a networking library for C/C++. It implements event-driven non-blocking APIs for TCP, UDP, HTTP, WebSocket, MQTT. It is designed for connecting devices and bringing them online. On the market since 2004, used by vast number of open source and commercial products - it even runs on the International Space Station! Mongoose makes embedded network programming fast, robust, and easy. Cross-platform, works on Linux/UNIX, MacOS, Windows, Android, FreeRTOS, etc. Supported embedded architectures: ESP32, NRF52, STM32, NXP, and more. Built-in protocols: plain TCP/UDP, HTTP, MQTT, Websocket. SSL/TLS support: mbedTLS, OpenSSL or custom (via API). Used to solve a wide range of business needs, like implementing Web UI interface on devices, RESTful API services, telemetry data exchange, remote control for a product, remote software updates, remote monitoring, and others. -
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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. -
4
Autobahn|Python
WebSocket and WAMP in Python for Twisted and asyncio
Autobahn Python is a networking library for building Python applications that use WebSocket and WAMP. It supports both Twisted and asyncio, giving developers flexibility depending on their preferred Python event framework. The WebSocket layer enables bidirectional real-time messaging between clients and servers. The WAMP layer adds routed remote procedure calls and publish-subscribe messaging for distributed applications. Autobahn Python is useful for dashboards, IoT systems, collaborative apps, backend services, messaging platforms, and applications that need real-time communication across components. It works especially well with a WAMP router such as Crossbar.io when building routed multi-service systems. -
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5
arduinoWebSockets
arduinoWebSockets
A WebSocket Server and Client for Arduino based on RFC6455. -
6
libhv
Network library for developing TCP/UDP/SSL/HTTP/WebSocket/MQTT client
Like libevent, libev, and libuv, libhv provides event loop with non-blocking IO and timer, but simpler api and richer protocols. Cross-platform (Linux, Windows, MacOS, BSD, Solaris, Android, iOS) High-performance EventLoop (IO, timer, idle, custom) TCP/UDP client/server/proxy. TCP supports heartbeat, reconnect, upstream, MultiThread-safe write and close, etc. Built-in common unpacking modes (FixedLength, Delimiter, LengthField) RUDP support: WITH_KCP. SSL/TLS support: (via WITH_OPENSSL or WITH_GNUTLS or WITH_MBEDTLS) HTTP client/server (support https http1/x http2 grpc). HTTP supports static service, indexof service, proxy service, sync/async API handler. HTTP supports RESTful, router, middleware, keep-alive, chunked, SSE, etc. WebSocket client/server. -
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SNI Cloudflare MASQUE All Countries
Value Added Warp over WebSocket via CDN Tunnel
UDP Over SSL Tunnel UDP Over SSL Tunnel is a free SSL tool with SNI Host (Spoof Host) support ( SSL Injector ). Warp-over-WebSocket-CDN Bypass ISP throttling and DPI by tunneling Cloudflare Warp traffic over WebSocket with Host Header spoofing through major CDN networks (CloudFront / Cloudflare / Akamai). Platform Protocol Tunnel License What It Does Many ISPs throttle or block VPN traffic using Deep Packet Inspection (DPI). Warp-over-WebSocket-CDN wraps WireGuard UDP inside a WebSocket connection with a spoofed Host header, routing traffic through major CDN edge networks (CloudFront, Cloudflare, or Akamai). To any firewall or DPI system, the traffic looks like a legitimate WebSocket upgrade to a CDN-hosted domain. Result: Full Cloudflare Warp speed and privacy, even on heavily restricted networks — including campus, corporate, and ISP-level DPI systems. -
8
GWS
Simple, fast, reliable websocket server & client
GWS is a high-performance WebSocket library for Go that provides both server and client capabilities. It is designed for high-concurrency use cases such as API gateways, chat systems, reverse proxies, online games, real-time streaming, and push or subscription services. The library exposes a minimal event-driven API, allowing developers to build WebSocket applications with relatively little code. It supports standard TCP usage as well as WebSocket operation over KCP and Unix domain sockets. GWS also includes practical features for connection handling, compression, heartbeat management, UTF-8 validation, and scalable read or write loops. It is a strong fit for Go developers who need a lightweight but feature-complete WebSocket foundation for real-time applications. -
9
IXWebSocket
websocket and http client and server library, with TLS support
IXWebSocket is a C++ library for WebSocket client and server development. It has minimal dependencies (no boost), is very simple to use and support everything you'll likely need for websocket dev (SSL, deflate compression, compiles on most platforms, etc...). HTTP client and server code is also available, but it hasn't received as much testing. It is been used on big mobile video game titles sending and receiving tons of messages since 2017 (iOS and Android). It was tested on macOS, iOS, Linux, Android, Windows and FreeBSD. Two important design goals are simplicity and correctness. -
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10
Melody
Minimalist websocket framework for Go
Melody is a minimalist WebSocket framework for Go that wraps the standard WebSocket workflow in a simple, developer-friendly API. It is designed to make real-time server features easier to build without requiring a large framework or complex setup. Developers can use it for chat systems, live notifications, dashboards, multiplayer coordination, collaborative tools, and other bidirectional communication features. Melody provides connection lifecycle hooks, message handlers, broadcasting, session management, and grouped communication patterns. It is built to feel familiar to Go developers and can be integrated into existing HTTP applications. The project is especially useful when a team needs straightforward WebSocket behavior without building connection handling and broadcast logic from scratch. -
11
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. -
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SuperSocket
Extensible socket server application framework for .NET
SuperSocket is a high-performance, extensible socket server framework for .NET applications. It provides a structured foundation for building custom network communication servers without manually implementing every low-level socket concern. The framework supports multiple protocols, including TCP, UDP, and WebSocket, and gives developers a modular architecture for protocol parsing, session handling, command processing, and server hosting. It is suitable for chat servers, game servers, IoT gateways, telemetry services, industrial systems, and other real-time network applications. SuperSocket is designed to be flexible enough for custom binary or text protocols while still offering reusable abstractions for common server patterns. It is most useful for .NET teams that need robust networking infrastructure with room for domain-specific protocol logic. -
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WebSockets in C
WebSockets in C for Embedded Applications
WIC is a C99 implementation of rfc6455 websockets designed for embedded applications. WIC decouples the websocket protocol from the transport layer. This makes it possible to use WIC over any transport layer assuming that you are prepared to do the integration work. -
14
UDP Warp+/WebSocket + CDN
Value Added Warp over WebSocket via CDN Tunnel
UDP Over SSL Tunnel UDP Over SSL Tunnel is a free SSL tool with SNI Host (Spoof Host) support ( SSL Injector ). Warp-over-WebSocket-CDN Bypass ISP throttling and DPI by tunneling Cloudflare Warp traffic over WebSocket with Host Header spoofing through major CDN networks (CloudFront / Cloudflare / Akamai). Platform Protocol Tunnel License What It Does Many ISPs throttle or block VPN traffic using Deep Packet Inspection (DPI). Warp-over-WebSocket-CDN wraps WireGuard UDP inside a WebSocket connection with a spoofed Host header, routing traffic through major CDN edge networks (CloudFront, Cloudflare, or Akamai). To any firewall or DPI system, the traffic looks like a legitimate WebSocket upgrade to a CDN-hosted domain. Result: Full Cloudflare Warp speed and privacy, even on heavily restricted networks — including campus, corporate, and ISP-level DPI systems. -
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A simple WebSocket server
A simple WebSocket server
A simple WebSocket server. -
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BeetleX
high performance dotnet core socket tcp communication components
High-performance dotnet core socket tcp communication components, support TLS, HTTP, HTTPS, WebSocket, RPC, Redis protocols, custom protocols and 1M connections problem solution. -
17
DNWebSocket
WebSocket(RFC-6455) library written using Swift
Object-Oriented, Swift-style WebSocket Library (RFC 6455) for Swift-compatible Platforms. -
18
FACIL.IO
Your high performance web application C framework
facil.io is an evented Network library written in C. facil.io provides high performance TCP/IP network services by using an evented design that was tested to provide an easy solution to the C10K problem. facil.io includes a mini-framework for Web Applications, with a fast HTTP / WebSocket server, integrated Pub/Sub, optional Redis connectivity, easy JSON handling, Mustache template rendering and more nifty tidbits. facil.io powers the HTTP/Websockets Ruby Iodine server and it can easily power your application as well. facil.io is easy to code with and aims at minimizing the developer's learning curve. In addition to detailed documentation and examples, the API is unified in style and the same types and API used for HTTP requests is used for JSON and Mustache rendering - so there's less to learn. facil.io should work on Linux / BSD / macOS (and possibly CYGWIN) and is continuously tested on both Linux and macOS. -
19
GoWebSocket
golang supports million-connection distributed chat (IM) system
GoWebSocket is a Go-based distributed WebSocket chat and instant messaging system designed around very high connection counts. It demonstrates how to build a scalable IM architecture using Go, Gin, Nginx load balancing, horizontal deployment, and internal service communication. The project uses gRPC for communication between program components and is structured to support distributed real-time messaging rather than a single-process chat demo. Its documentation highlights single-machine million-connection goals, making performance and concurrency central to the design. gowebsocket is useful for developers studying large-scale WebSocket systems, chat backends, connection management, and Go network programming. It is best treated as a technical reference and learning project for distributed real-time architecture. -
20
Gorilla WebSocket
Fast, well-tested and widely used WebSocket implementation for Go
Gorilla WebSocket is a Go implementation of the WebSocket protocol. The Gorilla WebSocket package provides a complete and tested implementation of the WebSocket protocol. The package API is stable. An application can also send and receive messages using the io.WriteCloser and io.Reader interfaces. To send a message, call the connection NextWriter method to get an io.WriteCloser, write the message to the writer and close the writer when done. To receive a message, call the connection NextReader method to get an io.Reader and read until io.EOF is returned. The WebSocket protocol distinguishes between text and binary data messages. Text messages are interpreted as UTF-8 encoded text. The interpretation of binary messages is left to the application. The Gorilla WebSocket package passes the server tests in the Autobahn Test Suite using the application in the examples/autobahn subdirectory. -
21
Karellen Gevent Websocket Library
Karellen Gevent Websocket Library
This is a Karellen fork of gevent-websocket. The goal of this fork is to maintain the project to support Python 3.3, 3.4 and 3.5+ as well as latest WS standards errata. -
22
Laravel WebSockets
Websockets for Laravel
Laravel WebSockets is a package for Laravel 5.7 and up that will get your application started with WebSockets in no time. It has a drop-in Pusher API replacement, a debug dashboard, real-time statistics and even allows you to create custom WebSocket controllers. -
23
N2O
Distributed WebSocket Application Server ISO 20922
N2O is an embeddable message protocol loop library for WebSocket, HTTP, MQTT and TCP servers. It provides basic features, such as process management, virtual nodes ring for request processing, sessions, frame encoding, and unified API for external mq and caching services. -
24
NestJS-Websocket
Websocket Client for NestJS based on ws
Websocket Client for NestJS based on ws. -
25
NetCoreServer
Ultra fast and low latency asynchronous socket server & client C#
Ultra fast and low latency asynchronous socket server & client C# .NET Core library with support TCP, SSL, UDP, Unix Domain Socket, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution. Has an integration with high-level message protocol based on Fast Binary Encoding. Cross-platform (Linux, MacOS, Windows) Asynchronous communication. Supported transport protocols: TCP, SSL, UDP, UDP multicast, Unix Domain Socket. Supported Web protocols: HTTP, HTTPS, WebSocket, WebSocket secure. Supported Swagger OpenAPI iterative documentation. Supported message protocol based on Fast Binary Encoding.
