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<h2>Client side</h2> <ul> <li>Hixie-75: <ul> <li>Chrome 4.0 + 5.0</li> <li>Safari 5.0.0</li> </ul></li> <li>HyBi-00/Hixie-76: <ul> <li>Chrome 6.0 - 13.0</li> <li>Safari 5.0.2 + 5.1</li> <li>iOS 4.2 + iOS 5</li> <li>Firefox 4.0 - <a href="https://developer.mozilla.org/en/WebSockets" rel="noreferrer">support for WebSockets disabled</a>. To enable it <a href="http://techdows.com/2010/12/turn-on-websockets-in-firefox-4.html" rel="noreferrer">see here</a>.</li> <li>Opera 11 - <a href="http://my.opera.com/ODIN/blog/2010/12/17/new-html5-features-in-opera-11" rel="noreferrer">with support disabled</a>. To enable it <a href="http://techdows.com/2010/12/enable-websockets-in-opera-11.html" rel="noreferrer">see here</a>.</li> </ul></li> <li>HyBi-07+: <ul> <li>Chrome 14.0</li> <li>Firefox 6.0 - prefixed: <code>MozWebSocket</code></li> <li>IE 9 - via <a href="http://html5labs.interoperabilitybridges.com/" rel="noreferrer">downloadable Silverlight extension</a></li> </ul></li> <li>HyBi-10: <ul> <li>Chrome 14.0 + 15.0</li> <li>Firefox 7.0 + 8.0 + 9.0 + 10.0 - prefixed: <code>MozWebSocket</code></li> <li>IE 10 (from Windows 8 developer preview)</li> </ul></li> <li>HyBi-17/RFC 6455 <ul> <li>Chrome 16</li> <li>Firefox 11</li> <li>Opera 12.10 / Opera Mobile 12.1</li> </ul></li> </ul> Any browser with Flash can support WebSocket using the <a href="https://github.com/gimite/web-socket-js" rel="noreferrer">web-socket-js</a> shim/polyfill. See <a href="http://caniuse.com/#search=websocket" rel="noreferrer">caniuse</a> for the current status of WebSockets support in desktop and mobile browsers. See the <a href="http://www.tavendo.de/autobahn/testsuite.html" rel="noreferrer">test reports</a> from the WS testsuite included in <a href="http://www.tavendo.de/autobahn" rel="noreferrer">Autobahn WebSockets</a> for feature/protocol conformance tests. <hr> <h2>Server side</h2> It depends on which language you use. In Java/Java EE: <ul> <li><a href="http://webtide.intalio.com/2011/04/getting-started-with-websockets/" rel="noreferrer">Jetty 7.0</a> supports it (very easy to use) <code>V 7.5 supports RFC6455</code> - <a href="http://dev.eclipse.org/mhonarc/lists/jetty-announce/msg00060.html" rel="noreferrer">Jetty 9.1</a> supports javax.websocket / JSR 356)</li> <li><a href="http://www.java.net/blog/spericas/archive/2010/09/29/web-sockets-and-html5-glassfish" rel="noreferrer">GlassFish 3.0</a> (very low level and sometimes complex), Glassfish 3.1 has new refactored Websocket Support which is more developer friendly <code>V 3.1.2 supports RFC6455</code></li> <li><a href="http://caucho.com/resin-4.0/examples/websocket-java/index.xtp" rel="noreferrer">Caucho Resin 4.0.2</a> (not yet tried) <code>V 4.0.25 supports RFC6455</code></li> <li><a href="http://tomcat.apache.org/tomcat-7.0-doc/web-socket-howto.html" rel="noreferrer">Tomcat 7.0.27</a> now supports it <code>V 7.0.28 supports RFC6455</code></li> <li><a href="http://tomcat.apache.org/tomcat-8.0-doc/web-socket-howto.html" rel="noreferrer">Tomcat 8.x</a> has native support for websockets RFC6455 and is JSR 356 compliant</li> <li><a href="http://jcp.org/en/jsr/detail?id=356" rel="noreferrer">JSR 356 included in Java EE 7</a> will define the Java API for WebSocket, but is not yet stable and complete. See Arun GUPTA's article <a href="https://blogs.oracle.com/arungupta/entry/websockets_and_java_ee_7" rel="noreferrer">WebSocket and Java EE 7 - Getting Ready for JSR 356 (TOTD #181)</a> and <a href="http://www.infoq.com/presentations/Java-EE7-HTML5-Cloud" rel="noreferrer">QCon presentation</a> (from 00:37:36 to 00:46:53) for more information on progress. You can also look at <a href="http://websocket-sdk.java.net/" rel="noreferrer">Java websocket SDK</a>.</li> </ul> Some other Java implementations: <ul> <li><a href="http://kaazing.com/" rel="noreferrer">Kaazing Gateway</a></li> <li><a href="http://jwebsocket.org/" rel="noreferrer">jWebscoket</a></li> <li><a href="http://www.jboss.org/netty" rel="noreferrer">Netty</a></li> <li><a href="http://xlightweb.sourceforge.net/" rel="noreferrer">xLightWeb</a></li> <li><a href="http://webbitserver.org/" rel="noreferrer">Webbit</a></li> <li><a href="https://github.com/Atmosphere/atmosphere" rel="noreferrer">Atmosphere</a></li> <li><a href="http://grizzly.java.net/" rel="noreferrer" title="Grizzly">Grizzly</a></li> <li><a href="http://activemq.apache.org/" rel="noreferrer">Apache ActiveMQ</a> <code>V 5.6 supports RFC6455</code></li> <li><a href="http://camel.apache.org/" rel="noreferrer">Apache Camel</a> <code>V 2.10 supports RFC6455</code></li> <li><a href="http://www.jboss.org/hornetq/" rel="noreferrer">JBoss HornetQ</a></li> </ul> In C#: <ul> <li><a href="http://xsockets.net" rel="noreferrer">XSockets.NET</a></li> <li><a href="http://superwebsocket.codeplex.com/" rel="noreferrer">SuperWebSocket</a></li> <li><a href="http://nugget.codeplex.com/" rel="noreferrer">Nugget</a></li> <li><a href="https://github.com/Olivine-Labs/Alchemy-Websockets" rel="noreferrer">Alchemy-Websockets</a></li> <li><a href="https://github.com/statianzo/Fleck" rel="noreferrer">Fleck</a></li> <li><a href="http://signalr.net/" rel="noreferrer">SignalR</a></li> </ul> In PHP: <ul> <li><a href="http://socketo.me/" rel="noreferrer">Ratchet</a></li> <li><a href="https://github.com/GeorgeNava/phpwebsocket" rel="noreferrer">phpwebsocket</a>.</li> <li><a href="https://github.com/wkjagt/Extendible-Web-Socket-Server" rel="noreferrer">Extendible Web Socket Server</a></li> <li><a href="https://github.com/kakserpom/phpdaemon" rel="noreferrer">phpdaemon</a></li> </ul> In Python: <ul> <li><a href="http://code.google.com/p/pywebsocket/" rel="noreferrer">pywebsockets</a></li> <li><a href="https://github.com/kanaka/websockify" rel="noreferrer">websockify</a></li> <li><a href="http://pypi.python.org/pypi/gevent-websocket/" rel="noreferrer">gevent-websocket</a>, <a href="https://bitbucket.org/Jeffrey/gevent-socketio/src" rel="noreferrer">gevent-socketio</a> and <a href="http://kennethreitz.org/introducing-flask-sockets/" rel="noreferrer">flask-sockets</a> based on the former</li> <li><a href="http://autobahn.ws" rel="noreferrer">Autobahn</a></li> <li><a href="http://www.tornadoweb.org" rel="noreferrer">Tornado</a></li> </ul> In C: <ul> <li><a href="http://git.warmcat.com/cgi-bin/cgit/libwebsockets/" rel="noreferrer">libwebsockets</a></li> </ul> In Node.js: <ul> <li><a href="http://socket.io/" rel="noreferrer">Socket.io</a> : Socket.io also has serverside ports for Python, Java, Google GO, Rack</li> <li><a href="http://sockjs.org" rel="noreferrer">sockjs</a> : sockjs also has serverside ports for Python, Java, Erlang and Lua</li> <li><a href="https://github.com/Worlize/WebSocket-Node" rel="noreferrer">WebSocket-Node</a> - Pure JavaScript Client & Server implementation of HyBi-10.</li> </ul> <a href="http://vertx.io/docs/" rel="noreferrer">Vert.x (also known as Node.x)</a> : A node like polyglot implementation running on a Java 7 JVM and based on Netty with : <ul> <li>Support for Ruby(JRuby), Java, Grovy, Javascript(Rhino/Nashorn), Scala, ...</li> <li>True threading. (unlike Node.js)</li> <li>Understands multiple network protocols out of the box including: TCP, SSL, UDP, HTTP, HTTPS, Websockets, <a href="https://github.com/sockjs/sockjs-client#readme" rel="noreferrer">SockJS</a> as fallback for WebSockets</li> </ul> <a href="http://pusher.com/" rel="noreferrer">Pusher.com</a> is a Websocket cloud service accessible through a REST API. <a href="https://www.dotcloud.com/" rel="noreferrer">DotCloud</a> cloud platform supports Websockets, and Java (Jetty Servlet Container), NodeJS, Python, Ruby, PHP and Perl programming languages. <a href="https://openshift.redhat.com/app/" rel="noreferrer">Openshift</a> cloud platform supports websockets, and Java (Jboss, Spring, Tomcat & Vertx), PHP (ZendServer & CodeIgniter), Ruby (ROR), Node.js, Python (Django & Flask) plateforms. For other language implementations, <a href="http://en.wikipedia.org/wiki/Web_Sockets" rel="noreferrer">see the Wikipedia article for more information</a>. The RFC for Websockets : <a href="http://tools.ietf.org/html/rfc6455" rel="noreferrer">RFC6455</a>
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