There are a number of sites that allow you see WebAuthn in action. Check out one of these demos to test drive yourself!
WebAuthn.io was created by Duo Labs to test the WebAuthn specification. You can use the demo to try out a number of the registration and authentication options supported by the WebAuthn spec.
Passkeys.io was created by Hanko to allow users to experience what it’s like to use passkeys. The site focuses on using passkeys synced across different devices and demonstrates some newer features such as passkeys showing in the browser’s autofill UI.
FusionAuth is an auth platform with support for WebAuthn. Their sandbox environment (sandbox.fusionauth.io) allows visitors to see the front-end user experience similar to the other demo sites. It also allows developers to explore the Relying Party options offered by the product.