Web platform features explorer

WebSockets

The WebSocket API opens a two-way communication channel between the user's browser and a server.

Status

Baseline Widely Available (since 2018-01-29)

MDN documentation

Specifications

Browser support (view on caniuse.com)

  • Chrome 5 Released on 2010-05-25
  • Chrome Android 18 Released on 2012-06-27
  • Edge 12 Released on 2015-07-29
  • Firefox 11 Released on 2012-03-13
  • Firefox for Android 14 Released on 2012-06-26
  • Safari 5 Released on 2010-06-07
  • Safari on iOS 4.2 Released on 2010-11-22

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