web-feature: Intl

baseline logo Widely available in browsers but not in WebViews

The Intl API provides language sensitive string comparison, number formatting, date and time formatting, and more.

WKWebView

macOS

*

iOS

*

Android WebView

Android

*

WebView2

Windows

*

WPE MiniBrowser

Linux

2026-04

Servo

Android

2026-04

Chrome Browser

Android

25

Safari Browser

iOS

10

Notes

Unsupported keys in WebViews

  • Android WebView:
    javascript.builtins.String.localeCompare.locales_parameter javascript.builtins.String.localeCompare.options_parameter

Support data provided by: BCD logo

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This feature was last updated on April 25, 2026.