A tool that displays your own public IPv4 and IPv6 addresses is now online at binsec.tools. It’s not the first tool that does that, but it’s free of advertising and tracking:
From a linux shell you can also call
$ curl https://ip.binsec.tools/
and get your IP back in JSON format
{"ip": "93.207.237.237", "version": 4}
or get the IPv4 or IPv6 address
$ curl https://ip4.binsec.tools/
$ curl https://ip6.binsec.tools/
In the browser you may stil use:
