Top 5 Enterprise CIAM Platforms for Passwordless and Passkeys

Passwords are the most attacked credential in customer identity, and the industry has moved decisively toward replacing them. Passkeys, the FIDO2 and WebAuthn credentials now supported across Apple, Google, and Microsoft platforms, are phishing-resistant by design and remove the password as a target entirely. For enterprise CIAM, passwordless is no longer a differentiator but a baseline expectation, both for security and for the conversion gains that come from removing login friction at scale.

This guide evaluates five enterprise CIAM platforms leading on passwordless, passkeys, and modern authentication in 2026. For the broader customer-identity field, see the best CIAM platforms ranking and our top open-source MFA and passwordless tools for self-hostable options.

Evaluation Criteria

• Passkey and WebAuthn support, FIDO2 passwordless as a first-class method
• Passwordless methods, magic links, one-time passcodes, social, biometrics
• Security, phishing resistance, adaptive/risk-based authentication, session control
• Scale, performance and reliability for large customer bases
• Ecosystem fit, how well it integrates with your stack and cloud
• Developer experience and pricing, SDKs, time to integrate, and cost model

The Top 5 Platforms

1. Auth0 (by Okta)

Best For: Teams wanting the broadest, most extensible enterprise CIAM with strong passkey support.

Auth0, part of Okta, is the most feature-complete developer CIAM platform, and passkeys, WebAuthn, magic links, and one-time passcodes are all first-class. Its Actions extensibility lets teams shape the authentication pipeline in depth, adaptive MFA and attack protection add risk-based security, and Organizations support B2B multi-tenancy. It scales to large customer bases, with the trade-off that per-MAU pricing rises as you grow.

Key Features

• Passkeys and WebAuthn with magic links and OTP
• Adaptive MFA, bot detection, and attack protection
• Actions for custom, code-level auth logic
• Organizations for B2B, plus broad SDK coverage

2. Microsoft Entra External ID

Best For: Microsoft-aligned enterprises extending identity to external customers.

Microsoft Entra External ID (formerly Azure AD B2C) is Microsoft's customer identity product for external users, distinct from Active Directory, which is the workforce and on-premises directory. It supports passwordless and passkey authentication, custom sign-up and sign-in flows, and integrates natively across the Microsoft cloud and its security tooling. For organizations already standardized on Microsoft, it keeps customer identity within the same governance, compliance, and operational model as the rest of their estate.

Key Features

• Passwordless and passkey (FIDO2) authentication
• Custom user flows and branding for external users
• Native integration with the Microsoft cloud and security stack
• Conditional access and risk-based controls

3. WorkOS

Best For: B2B SaaS products that need enterprise SSO alongside modern passwordless login.

WorkOS centers on the enterprise-readiness features B2B SaaS needs, SAML and OIDC SSO, SCIM directory sync, and audit logs, and its AuthKit hosted experience adds passwordless methods including passkeys and magic links. It routes users to the right method by email domain, sending enterprise domains to their organization's SSO while giving everyone else modern passwordless login. Pricing is per connection, which suits products selling to a set of enterprise customers.

Key Features

• AuthKit passwordless (passkeys, magic links) plus enterprise SSO
• SCIM Directory Sync and admin self-service portal
• Domain-based routing to SSO or passwordless
• Fine-Grained Authorization for permissions

4. MojoAuth

Best For: Developer teams that want passwordless and passkeys live fast, with app SSO included.

MojoAuth is a passwordless-first CIAM built around passkeys and WebAuthn, with magic links, one-time passcodes, and social login, delivered through drop-in SDKs and hosted flows. It also acts as an OpenID Connect and SAML 2.0 identity provider, so one project can federate several apps to a single branded passwordless login, with SSO included rather than upsold. It is an emerging vendor competing on developer speed and transparent pricing rather than enterprise incumbency, so teams needing deep governance should confirm fit.

Key Features

• Passkeys and WebAuthn as first-class passwordless
• Magic links, OTP, and social login via drop-in SDKs
• OIDC and SAML identity-provider support for app SSO
• Transparent pricing with SSO included

5. Google Identity Platform (Firebase Authentication)

Best For: Mobile-first and consumer apps scaling on Google infrastructure.

Google Identity Platform is the enterprise tier of Firebase Authentication, Google's widely used developer authentication service. It provides email, phone, social, and passwordless sign-in with passkey support, tight integration with Firebase and Google Cloud, and the reliability of Google's infrastructure at scale. It is especially strong for mobile-first products already building on Firebase, with enterprise features like multi-tenancy and SLA-backed support in the Identity Platform tier.

Key Features

• Passwordless sign-in with passkey support
• Email, phone, and social authentication
• Deep Firebase and Google Cloud integration
• Multi-tenancy and enterprise support in the paid tier

Comparison Matrix

How to Choose

Start from your ecosystem. Auth0 is the safest vendor-neutral choice for breadth and extensibility, Microsoft Entra External ID fits enterprises standardized on Microsoft, and Google Identity Platform fits mobile-first products on Google Cloud. For B2B SaaS that must offer enterprise SSO alongside passwordless, WorkOS is the most direct, and MojoAuth is the fastest passwordless-first path for developer teams that value transparent pricing.

Whichever you choose, confirm the specifics that matter for passwordless at scale: passkey coverage across platforms, account recovery flows, session and token controls, and adaptive risk signals. For self-hostable alternatives, see the top open-source MFA and passwordless tools, and compare specific pairs in our comparisons.

Conclusion

Passwordless and passkeys have moved from roadmap to requirement in enterprise CIAM. Each platform here delivers phishing-resistant authentication with a different center of gravity, Auth0 on breadth, Microsoft Entra External ID on the Microsoft ecosystem, WorkOS on B2B SSO, MojoAuth on developer speed, and Google Identity Platform on mobile-first scale. Match the platform to your stack and customer base, and prioritize the passkey and recovery experience, because that is what customers feel every time they log in.