On the standards track: Yes
Is Experimental: Yes
Is Deprecated: No
In Chrome version 89 on 2021-03-02
In Chrome Android version 138 on 2025-06-24 Note: Serial ports are only available if they're provided by Bluetooth RFCOMM serial port emulation.
In Edge version 89 on 2021-03-04
Not in Firefox
Not in Firefox for Android
Not in Internet Explorer
Not in Quest Browser
In Opera version 75 on 2021-03-24
In Opera Android version 91 on 2025-08-19 Note: Serial ports are only available if they're provided by Bluetooth RFCOMM serial port emulation.
Not in Safari
Not in Safari on iOS
Not in Samsung Internet
Not in WebView Android
Not in WebView on iOS