Google has introduced Immediate UI mode for passkeys and managed passwords, a web capability designed to reduce friction during sign-in. The feature lets websites offer saved credentials directly when a user reaches a sign-in moment, such as clicking a Sign In or Checkout button.

Instead of sending users to a separate login page or requiring them to manually choose among several sign-in options, the browser can display an immediate login dialog when eligible credentials are already available locally. If Chrome does not find suitable credentials, the request fails silently so the website can fall back to conventional sign-in methods such as email and password forms, phone verification or social login.
Google says the key benefits are a smoother experience, graceful fallback and less user confusion. For sites that support passkeys, this can make passwordless sign-in feel more natural and reduce the number of steps between intent and authentication.
Developers who tested the earlier Origin Trial need to note an API change. Google says the previous mediation: "immediate" approach no longer triggers the feature. Developers must use the uiMode: "immediate" field in navigator.credentials.get() instead.
The feature is part of a broader push to make passkeys practical for mainstream users. Passkeys can improve security because they reduce reliance on reusable passwords that can be phished, leaked or reused across sites. But adoption depends heavily on user experience. If sign-in feels complicated, users and websites may hesitate to move away from passwords.
Immediate UI mode is therefore not just a small interface change. It is an attempt to make safer authentication feel simpler at the exact moment a user wants to log in or complete a transaction.
