Web features explorer

Top-level await

Newly Available (since 2026-09-14)
Expected to be Widely Available on 2029-03-14

The await keyword, when used at the top level of a module (outside of an async function), delays parent module execution until after a promise fulfills.

Browser support

  • Chrome 89 Released on 2021-03-02
  • Chrome Android 89 Released on 2021-03-02
  • Edge 89 Released on 2021-03-04
  • Firefox 89 Released on 2021-06-01
  • Firefox for Android 89 Released on 2021-06-01
  • Safari 27 Released on 2026-09-14
  • Safari on iOS 27 Released on 2026-09-14

MDN documentation

Specifications

Usage (according to Chrome Platform Status)

~1.450% of page loads. More data at chromestatus.com.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

Interop

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