Open Source ChromeOS WebSocket Servers

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.

PHP micro-framework designed to build a RestApi working together with a WebSocket server. Build a real-time RestApi!

Ultra-fast and low latency asynchronous socket server & client C++ library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols, and 10K connections problem solution. Cross platform (Linux, MacOS, Windows) Asynchronous communication. Supported CPU scalability designs: IO service per thread, thread pool. Supported transport protocols: TCP, SSL, UDP, UDP multicast. Supported Web protocols: HTTP, HTTPS, WebSocket, WebSocket secure. Supported Swagger OpenAPI iterative documentation. Supported message protocol based on Fast Binary Encoding.

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.

Please go to https://github.com/eidheim/Simple-WebSocket-Server, as this sourceforge page will no longer be updated.

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.

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.

NEW : pd-vanilla version requiring only mrpeach external library ! download link (and notes) : https://sourceforge.net/projects/websocketserverinapatch/files/ "websocket-server in a patch.pd" single Pd file contains a reusable and fully documented websocket server, meant as an easy way to experiment with Pure Data <-> web-browsers communications through websockets, without the need of other software (like node.js or python) or any specific external to compile (just one deken library is required). A demo is included in the same patch : 'Flames', a simple cross-browser, multi-touch and multi-player graphical interface which makes Pd play creepy sounds :) Just try it : In Pd (vanilla) on Windows, Mac or Linux, install the 'mrpeach' library via 'Help->Find externals' menu, then open the patch and fire any recent web-browsers (on same machine or other computer, smartphone or tablet on same local network) with the URL provided at the top of main windows, and you're good to go !

tokio-tungstenite is a Rust library that connects the Tungstenite WebSocket implementation with the Tokio asynchronous runtime. It lets developers build non-blocking WebSocket clients and servers using Tokio’s async networking model. The crate wraps asynchronous TCP streams and upgrades them into WebSocket streams that integrate naturally with Rust futures and async tasks. It is useful for real-time services, streaming applications, chat systems, gateways, backend infrastructure, and any Rust project that needs WebSocket communication without blocking threads. Because it builds on Tungstenite, it inherits a standards-focused WebSocket protocol foundation while adding Tokio compatibility. It is a practical choice for Rust developers who need efficient, event-driven WebSocket networking.