Web platform features explorer

Autonomous custom elements

Autonomous custom elements are HTML elements with a hyphenated tag name (like <example-element>) that have behaviors you define.

Status

Baseline Widely Available (since 2022-07-15)

MDN documentation

Specifications

Browser support

  • Chrome 54 Released on 2016-10-12
  • Chrome Android 54 Released on 2016-10-19
  • Edge 79 Released on 2020-01-15
  • Firefox 63 Released on 2018-10-23
  • Firefox for Android 63 Released on 2018-10-23
  • Safari 10.1 Released on 2017-03-27
  • Safari on iOS 10.3 Released on 2017-03-27

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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