Conditional UI is a browser feature that allows passkey sign-in prompts to appear automatically when a user focuses on a username field. It streamlines the login experience by letting users choose a passkey (discoverable credentials) directly from their device's native interface, making passwordless sign-ins faster and more intuitive.

This page demonstrates the use of passkeys with Conditional UI. When you focus on the username field, your browser may offer to use saved passkeys for quick sign-in. If no passkey is available, you can continue by entering your username and signing in manually.