Understand and build advanced authentication systems with Chrome

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Enable Chrome to share login credentials across affiliated sites.
WebOTP gives users one-time passwords through SMS.
WebOTP helps users enter a phone number verification code on a mobile website in one tap without switching between apps.

Passkeys are an easier and more secure replacement for passwords, enabling users to sign in to their account by unlocking their device screen.

Federated Credential Management API

The Federated Credential Management API (or FedCM API) provides a standard mechanism for identity providers to make identity federation services available on the web without the need for third-party cookies and redirects.
The Federated Credential Management API (or FedCM API) provides a standard mechanism for identity providers to make identity federation services available on the web without the need for third-party cookies and redirects.
Review a curated collection of high-quality resources to help you understand authentication basics and how to build your own authentication systems, with modern APIs.