On the standards track: No
Is Experimental: Yes
Is Deprecated: No
In Chrome version 141 on 2025-09-30 Note: Fully supported on Windows and Linux, no support on ChromeOS. Method exposed on macOS, but notifications are not reliably spoken.
In Chrome Android version 141 on 2025-09-30 Note: Fully supported on Windows and Linux, no support on ChromeOS. Method exposed on macOS, but notifications are not reliably spoken.
In Edge version 141 on 2025-10-03 Note: Fully supported on Windows and Linux, no support on ChromeOS. Method exposed on macOS, but notifications are not reliably spoken.
Not in Firefox
Not in Firefox for Android
Not in Internet Explorer
Not in Quest Browser
In Opera version 125 on undefined Note: Fully supported on Windows and Linux, no support on ChromeOS. Method exposed on macOS, but notifications are not reliably spoken.
Not in Opera Android
Not in Safari
Not in Safari on iOS
Not in Samsung Internet
In WebView Android version 141 on 2025-09-30 Note: Fully supported on Windows and Linux, no support on ChromeOS. Method exposed on macOS, but notifications are not reliably spoken.
Not in WebView on iOS