Open Source BSD WebSocket Servers

websocketd is the WebSocket daemon. It takes care of handling the WebSocket connections, launching your programs to handle the WebSockets, and passing messages between programs and web-browser. If you can run your program from the command line, you can write WebSocket endpoints. Just read incoming text from stdin and write outgoing text to stdout. Messaging is simple. Each inbound WebSocket connection runs your program in a dedicated process. Connections are isolated by process. Available for Linux, OSX, Windows, FreeBSD, OpenBSD and Solaris. Serves your static HTML, JavaScript, etc. Route different URLs to different programs. Dynamic generate content over HTTP too. Out-of-the-box support for serving content using HTTPS and WSS. Restrict which pages can make WebSocket connections. Interact with your WebSocket programs before you've built your frontend.

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.

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!

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

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 !

Wslay is a WebSocket library written in C. It implements the protocol version 13 described in RFC 6455. This library offers 2 levels of API: event-based API and frame-based low-level API. For event-based API, it is suitable for non-blocking reactor pattern style. You can set callbacks in various events. For frame-based API, you can send WebSocket frame directly. Wslay only supports data transfer part of WebSocket protocol and does not perform opening handshake in HTTP. Wslay does not perform any I/O operations for its own. Instead, it offers callbacks for them. This makes Wslay independent on any I/O frameworks, SSL, sockets, etc. This makes Wslay protable across various platforms and the application authors can choose freely I/O frameworks.