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What browsers support HTML5 WebSocket API?
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javascriptweb-applicationshtmlnetwork-programmingwebsocket
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I am going to develop an instant messaging application that runs in the browser.

What browsers support the WebSocket API?

Kuhn answered 10/8, 2009 at 8:19 Comment(11)
We are keeping an up-to-date list of WebSocket supporting browsers on our Java WebSocket project website: jwebsocket.org/browsers.htm – Babettebabeuf
We should try to keep these answers up to date, right? I presume that's preferable to re-asking it. – Flooring
The best site for HTML5 and related functionality is caniuse.com – Bethea
There's a good community wiki about HTML5 websockets: stackoverflow.com/questions/4262543/using-html-5-websockets – Educated
This entire question should be closed and deleted, it's not what Stack Overflow is for. Hit up caniuse.com instead. – Deem
@meagar - I disagree. I think it should be protected as a wiki to prevent new answers, but preserve the current helpful answer. This question has over 100,000 views. – Clotheshorse
@TravisJ Answers to this question are out of date pretty much as soon as they're posted. The answers below devolve into everything from pitching commercial products to random postings about personal favourite tutorials on websocks. This entire question could read "WEBSOCKETS: DISCUSS". It's a forum post, and it's completely off-topic for Stack Overflow. – Deem
@meagar - Hence protection. The main answer here should remain. The other answers should be deleted because they lack quality, as you point out. If you feel so strongly about them, you should flag them for deletion. – Clotheshorse
@TravisJ Why? The main answer is bad. It isn't useful if it can't be constantly updated, and that's not he kind of question Stack Overflow is for. I could run through 90% of the answers here and mark them as "not an answer". They're links to random libraries, random tutorials, random tidbits, almost all of them should be comments at best. – Deem
caniuse.com/#feat=websockets – Oligopoly
The question is necessary. And a comment "to closed as too localized by" - it's really a moment in time but not relevant to a small geographic area. Not at all! – Audient
S
430

Client side

  • Hixie-75:
  • Chrome 4.0 + 5.0
  • Safari 5.0.0
  • HyBi-00/Hixie-76:
  • Chrome 6.0 - 13.0
  • Safari 5.0.2 + 5.1
  • iOS 4.2 + iOS 5
  • Firefox 4.0 - support for WebSockets disabled. To enable it see here.
  • Opera 11 - with support disabled. To enable it see here.
  • HyBi-07+:
  • Chrome 14.0
  • Firefox 6.0 - prefixed: MozWebSocket
  • IE 9 - via downloadable Silverlight extension
  • HyBi-10:
  • Chrome 14.0 + 15.0
  • Firefox 7.0 + 8.0 + 9.0 + 10.0 - prefixed: MozWebSocket
  • IE 10 (from Windows 8 developer preview)
  • HyBi-17/RFC 6455
  • Chrome 16
  • Firefox 11
  • Opera 12.10 / Opera Mobile 12.1

Any browser with Flash can support WebSocket using the web-socket-js shim/polyfill.

See caniuse for the current status of WebSockets support in desktop and mobile browsers.

See the test reports from the WS testsuite included in Autobahn WebSockets for feature/protocol conformance tests.

Server side

It depends on which language you use.

In Java/Java EE:

Some other Java implementations:

In C#:

In PHP:

In Python:

In C:

In Node.js:

  • Socket.io : Socket.io also has serverside ports for Python, Java, Google GO, Rack
  • sockjs : sockjs also has serverside ports for Python, Java, Erlang and Lua
  • WebSocket-Node - Pure JavaScript Client & Server implementation of HyBi-10.

Vert.x (also known as Node.x) : A node like polyglot implementation running on a Java 7 JVM and based on Netty with :

  • Support for Ruby(JRuby), Java, Groovy, Javascript(Rhino/Nashorn), Scala, ...
  • True threading. (unlike Node.js)
  • Understands multiple network protocols out of the box including: TCP, SSL, UDP, HTTP, HTTPS, Websockets, SockJS as fallback for WebSockets

Pusher.com is a Websocket cloud service accessible through a REST API.

DotCloud cloud platform supports Websockets, and Java (Jetty Servlet Container), NodeJS, Python, Ruby, PHP and Perl programming languages.

Openshift 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, see the Wikipedia article for more information.

The RFC for Websockets : RFC6455

Snooze answered 10/8, 2009 at 8:20 Comment(13)
+1 for keeping it up to date. Opera will also have Websockets support in 10.70. – Ailurophobe
Right, I think they renamed Opera 10.70 in Opera 11 opera.com/browser/next – Snooze
@Tony: IE9 does not support WebSockets. There's experimental support available as an add-on in HTML5 Labs, but not shipped and ready. – Miley
Webbit is an excellent Java WebSocket server that should be added to the list. – Furl
Update: Chrome 16 uses hybi-17 now. – Stomach
caniuse.com does not display all browsers, there is, for example, also google chrome on IOS. i have no idea if it supports websockets at all, and if, which protocols / implementations. – Fiance
IE10 will support websockets, but not IE9. – Roommate
In Go-lang websockets are in the standard library: go.net/websocket – Richy
For C#, you can WCF 4.5 (ships with VS 2013). This has built-in support for websockets now. – Airline
Caniuse is still referenced in client part. – Snooze
for server side i would add uWSGI. uwsgi-docs.readthedocs.org/en/latest/WebSockets.html – Teletypewriter
also play seems to offer server side web sockets playframework.com/documentation/2.3.x/JavaWebSockets – Empathic
Excellent summary. With respect to Firefox, the following link says that RFC 6455 is supported by version 48.0 and above: developer.mozilla.org/en-US/docs/Web/API/WebSockets_API – Fonteyn

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