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You can use Authsignal’s Web SDK to implement authentication flows in web browsers while crafting your own UI.
Passkeys on Web

Using the Web SDK to implement passkey autofill on a custom sign-in page.

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Authentication methods

The Web SDK can be used to implement a variety of authentication methods.

Passkeys

Add passkeys to your web app for phishing-resistant passwordless sign-in and step-up authentication.

Authenticator app (TOTP)

Authenticate with time-based one-time passcodes generated in an authenticator app such as Google Authenticator.

Email OTP

Send OTPs via email to authenticate users and verify email addresses.

Email magic link

Send magic links via email to authenticate users and verify email addresses.

SMS

Send OTPs via SMS to authenticate users and verify phone numbers.

WhatsApp

Authenticate with OTPs sent via WhatsApp as a cost-saving alternative to traditional SMS.

Push verification

Allow users to sign-in across devices using push notifications and public key cryptography.

QR code verification

Allow users to sign-in across devices using QR codes and public key cryptography.

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Get started

Follow the SDK documentation on setting up the Web SDK.