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Azure AD B2C is a legacy customer identity platform from Microsoft that allows organizations to add authentication, social login, and identity federation to consumer-facing applications. As part of the Microsoft Azure ecosystem, it provides scalable identity infrastructure and integrates with many Microsoft services, making it a common choice for teams building web and mobile applications on Azure. For organizations managing large user populations, Azure AD B2C offers centralized identity management and policy-driven authentication flows.
As application architectures evolve, however, many teams find that Azure AD B2C’s design can introduce friction in modern development environments. Implementing advanced authentication scenarios often relies on XML-based custom policies that can be complex to maintain and difficult to debug. More importantly, Microsoft has announced that Azure AD B2C is end-of-sale for new customers, prompting many organizations to reassess their long-term identity strategy. As companies expand into multi-tenant SaaS platforms, partner ecosystems, and highly customized user journeys, the operational complexity and rigidity of policy-based identity flows can slow development and increase maintenance overhead.
Below, we break down the top reasons developers seek Azure AD B2C alternatives, followed by a closer look at the leading identity platforms available today.
Why teams seek Azure AD B2C alternatives
Many teams evaluate alternatives to Azure AD B2C for several key reasons:
Product transition uncertainty: Microsoft has announced that Azure AD B2C is end-of-sale for new customers. While existing deployments continue to be supported, this transition has prompted many organizations to reassess their long-term identity strategy and evaluate newer platforms.
Complex policy framework: Advanced authentication scenarios typically require XML-based custom policies. These policies can be difficult to learn, debug, and maintain, especially as authentication journeys grow more complex.
Slower development cycles: Updating authentication experiences often requires editing policies, redeploying configurations, and retesting multiple user journeys. This can slow experimentation with new login flows, MFA conditions, or onboarding experiences.
Limited debugging visibility: Troubleshooting authentication failures can be challenging due to limited debugging tools and opaque error messages. Developers frequently rely on manual log analysis to understand policy execution and resolve issues.
Rigid identity journey design: Azure AD B2C relies on predefined user flows or custom policy definitions, which can make dynamic authentication journeys harder to implement. Complex onboarding logic or contextual access decisions may require significant policy customization.
Integration friction outside the Microsoft ecosystem: While Azure AD B2C integrates well with Microsoft services, integrating with external identity providers, fraud detection tools, or custom application logic can require additional configuration or middleware.
Pricing complexity as applications scale: Pricing is based on monthly active users and feature tiers, which can make long-term costs harder to predict for rapidly growing applications or consumer platforms.
Customization and UX limitations: Customizing login pages and authentication experiences often requires additional configuration or policy work, making it harder to quickly implement fully branded or application-specific authentication flows.
Each alternative below addresses these challenges differently depending on your architecture, ecosystem, and developer workflow requirements.
Descope
Overview
Descope is a modern customer, partner, and agentic identity platform designed for teams building applications beyond traditional identity systems like Azure AD B2C. It enables organizations to deliver secure, customizable authentication and authorization without relying on complex policy frameworks or heavy configuration models.
Unlike Azure AD B2C, which often depends on XML-based custom policies to define authentication journeys, Descope provides a cloud-native, developer-focused platform where authentication, MFA, enterprise SSO, authorization, and identity orchestration are managed within a unified system. This approach simplifies implementation while giving teams greater flexibility to adapt identity experiences as applications evolve.
Descope is particularly well suited for SaaS platforms that need to support customer identity (CIAM), multi-tenant B2B environments, partner ecosystems, and modern API-first architectures. Its core differentiator is Descope Flows, a visual no-code / low-code orchestration layer that allows developers to design and modify login, MFA, SSO, onboarding, and step-up authentication journeys without editing policy files or redeploying application code. This allows teams to iterate on authentication experiences much faster while maintaining centralized identity control.
Key capabilities
Visual workflow editor for login, signup, MFA, SSO, step-up, and consent flows, enabling teams to modify authentication journeys quickly without editing XML policies or redeploying application code as required in Azure AD B2C.
Enterprise SSO Setup Suite for guided SAML and SCIM onboarding, simplifying federation setup and lifecycle management that otherwise requires manual configuration and policy customization.
Cloud-native identity orchestration across authentication, authorization, MFA, risk, and fraud signals, coordinating identity logic in a single platform instead of chaining together complex policy configurations.
Native multi-tenant identity with built-in RBAC and FGA, designed for SaaS and B2B environments without relying on directory-level workarounds or custom attribute mapping.
Adaptive MFA, session protection, and bot detection using native risk signals and fraud integrations, allowing teams to implement risk-based authentication without deploying multiple security add-ons.
Support for passkeys, OTP, magic links, social login, and Google One Tap, delivering modern passwordless authentication methods without extensive configuration or complex policy management.
Plug-and-play connectors ecosystem with 50+ integrations, enabling enrichment, fraud detection, analytics, and lifecycle automation tools to be integrated directly into identity workflows.
Embeddable user and admin UI components for profile management and tenant administration, reducing the need to build and maintain custom identity management interfaces.
15+ SDKs and APIs for web, mobile, and backend services, supporting modern API-first and microservices architectures across multiple development environments.
Anonymous pre-auth user tracking for top-of-funnel visibility, helping teams understand and optimize signup and login conversion across consumer applications.
Agentic identity support for AI agents and MCP-based ecosystems, extending authentication and authorization infrastructure beyond human users to secure AI systems.
Strengths
Modern cloud-native architecture without XML policy dependency: Descope is built for API-first and distributed environments, avoiding the complex XML custom policy frameworks that often add operational overhead in Azure AD B2C implementations.
Visual identity orchestration instead of policy file editing: Authentication, MFA, SSO, and authorization journeys can be designed and updated visually, eliminating the need to manage large XML configuration files.
Unified identity platform instead of layered identity services: Authentication, authorization, MFA, risk signals, and orchestration are delivered in a single system, reducing the need to integrate and maintain multiple identity tools.
Native multi-tenant identity for SaaS environments: Tenant-aware users, roles, and permissions are built in, eliminating directory-level workarounds commonly required when implementing multi-tenant SaaS with Azure AD B2C.
Streamlined enterprise SSO onboarding: Guided SAML and SCIM setup, self-service configuration, and workflow-based SSO journeys simplify federation compared to complex manual configuration processes.
Adaptive and risk-based MFA built directly into flows: Dynamic step-up authentication can be enforced using native and third-party risk signals without requiring separate advanced authentication products.
Passwordless authentication supported out of the box: Passkeys, magic links, OTP, and social login are first-class methods that can be incorporated into authentication journeys without extensive customization.
Reduced identity technical debt over time: Authentication logic can evolve through configurable workflows rather than maintaining complex custom policy frameworks as applications grow.
Built for modern SaaS and CIAM architectures: Designed to support customer identity, B2B SaaS, partner ecosystems, and flexible identity journeys without the constraints of legacy identity models.
Broad SDK and API coverage: Integrates cleanly across web, mobile, backend services, and API-driven architectures without introducing identity infrastructure bottlenecks.
Ideal for
Descope is a strong choice for organizations evaluating alternatives to Azure AD B2C or planning a modernization path away from complex custom policy frameworks. It is well suited for teams that want to replace XML-based policy configuration and rigid identity journeys with a cloud-native, API-first identity platform.
It fits SaaS companies and digital product teams that require tenant-aware authentication, self-service enterprise SSO onboarding, adaptive MFA, and flexible identity flows that can evolve quickly without editing policy files or redeploying applications.
Descope is also ideal for B2B, B2C, and hybrid platforms that need unified authentication and authorization, fine-grained access control, and orchestration across customers, partners, administrators, and automated systems within a single modern identity layer.
Also Read: Migration Guide From Azure B2C to Descope
Microsoft Entra External ID
Overview
Microsoft Entra External ID is Microsoft’s newer external identity platform for customer and partner access. Organizations currently using Azure AD B2C often evaluate Entra External ID as Microsoft’s long-term replacement within the broader Entra identity ecosystem.
Like Azure AD B2C, Entra External ID operates as a cloud service and integrates closely with Microsoft’s identity and security stack. It supports external user authentication, enterprise federation, and conditional access policies while aligning identity management with Microsoft Entra governance, compliance, and security controls.
Key capabilities
Enterprise federation using SAML, OIDC, and OAuth2
Built-in MFA and conditional access policies
Integration with Microsoft Entra ID and Azure services
Customizable authentication journeys and branding for external users
Strengths
Microsoft ecosystem alignment: Entra External ID integrates directly with Microsoft Entra ID, Azure services, and Microsoft security tooling used across the broader Microsoft platform.
Centralized security policy management: Conditional access, MFA, and identity protection policies are managed within Microsoft’s unified Entra identity framework.
Natural transition from Azure AD B2C: Organizations already running Azure AD B2C can evaluate Entra External ID as Microsoft’s evolving platform for external identity workloads.
Ideal for
Microsoft Entra External ID is well suited for organizations already invested in Azure infrastructure and Microsoft security services. It is often considered by teams currently using Azure AD B2C that want to align external identity with Microsoft’s broader Entra identity platform.
Auth0
Overview
Auth0, part of Okta, is a cloud-based customer identity platform frequently evaluated by organizations modernizing beyond legacy access management systems such as Symantec SiteMinder. Unlike proxy-based, infrastructure-heavy deployments, Auth0 delivers authentication, authorization, MFA, and federation as a managed service. It supports API-first architectures and customer-facing applications while maintaining enterprise SSO compatibility.
Teams replacing SiteMinder often consider Auth0 when they want to reduce on-prem complexity, adopt modern identity standards, and consolidate authentication and federation into a single cloud-native platform.
Key capabilities
Enterprise SSO with SAML, OIDC, and OAuth2 across a wide range of identity providers
Built-in MFA including WebAuthn, TOTP, SMS, email, and push
Extensible authentication logic using Rules and Actions
Hosted and customizable login experiences for web and mobile applications
Strengths
Broad identity coverage: Auth0 delivers authentication, MFA, authorization extensibility, and enterprise federation within a single managed platform rather than relying on proxy-based web access control.
Cloud-native architecture: Auth0 operates as a managed service, reducing infrastructure management and eliminating the need for reverse proxies or web agents.
Extensible integration ecosystem: Auth0 provides prebuilt enterprise identity provider integrations and customization through Rules and Actions, enabling protocol flexibility without server-level configuration.
Ideal for
Auth0 is well suited for organizations transitioning from on-prem access gateways to a managed, cloud-based identity platform. It fits teams that require enterprise federation, built-in MFA, and extensibility while reducing operational overhead associated with legacy proxy architectures.
Also Read: Why GoodRx Migrated Tens of Millions of Users From Auth0 to Descope
Amazon Cognito
Overview
Amazon Cognito is AWS’s native authentication and user management service for web and mobile applications. Teams evaluating Azure AD B2C alternatives often consider Cognito when they want identity infrastructure aligned with the broader AWS ecosystem.
Like Azure AD B2C, Cognito provides managed authentication, user directories, and identity federation for consumer-facing applications. It integrates directly with AWS services and allows developers to manage signups, logins, and access control without building authentication systems from scratch.
Key capabilities
Federated identity support with SAML, OIDC, and social providers
User pools for managing and authenticating users
Lambda triggers to customize authentication flows
Integration with AWS services such as API Gateway, IAM, and AppSync
Strengths
Deep AWS ecosystem integration: Cognito connects directly with AWS infrastructure including API Gateway, IAM, and Lambda, simplifying identity management for applications built on AWS.
Flexible identity federation: Supports SAML, OIDC, and social login providers such as Google and Facebook, enabling multiple authentication options for consumer applications.
Custom authentication logic: Lambda triggers allow developers to insert custom logic at different points in the authentication lifecycle.
Ideal for
Amazon Cognito is well suited for organizations already running applications on AWS infrastructure and looking for an identity service that integrates closely with their existing cloud architecture. It is often considered by teams evaluating alternatives to Azure AD B2C that prefer to standardize identity within the AWS ecosystem.
Firebase Authentication
Overview
Firebase Authentication is Google’s authentication service within the Firebase development platform. Teams evaluating Azure AD B2C alternatives often consider Firebase when they want a lightweight identity layer tightly integrated with Google’s application development ecosystem.
Like Azure AD B2C, Firebase Authentication supports common login methods and user management for web and mobile applications. It is designed for quick implementation and integrates directly with other Firebase services such as Firestore, Cloud Functions, and Firebase Hosting.
Key capabilities
Prebuilt UI components for login and signup flows
Authentication via email/password, social login, phone number, and anonymous users
SDKs for web, Android, iOS, and major frameworks
Integration with Firebase services such as Firestore, Cloud Functions, and Hosting
Strengths
Fast setup and simple integration: Firebase Authentication provides a quick path to production, allowing developers to enable common login methods and integrate authentication using client-side SDKs.
Mobile-first and cross-platform support: Firebase offers strong support for Android, iOS, and cross-platform frameworks such as Flutter.
Tight integration with Firebase services: Authentication works natively with Firebase tools like Firestore, Realtime Database, and Firebase Hosting.
Ideal for
Firebase Authentication is well suited for mobile-first applications and early-stage teams building within the Firebase ecosystem. It is often considered by teams evaluating Azure AD B2C alternatives that want a simple authentication layer with minimal infrastructure overhead.
Also Read: Why Owens & Minor Augmented Firebase With Descope For Modern IAM
Keycloak
Overview
Keycloak is an open-source identity and access management platform originally developed by Red Hat. Organizations evaluating Azure AD B2C alternatives often consider Keycloak when they want full control over identity infrastructure and the flexibility of a self-hosted solution.
Similar to Azure AD B2C, Keycloak supports authentication, user management, and identity federation for web and mobile applications. However, it is typically deployed and managed by the organization itself rather than delivered as a fully managed cloud service.
Key capabilities
Support for SAML, OAuth2, and OpenID Connect authentication
Built-in single sign-on and identity federation
User federation with LDAP and Active Directory
Admin console and user self-service account management
Strengths
Open-source flexibility: Keycloak provides full control over identity infrastructure, allowing teams to customize authentication and authorization behavior without vendor lock-in.
Enterprise federation support: Supports integration with enterprise identity providers and directories such as LDAP and Active Directory.
Extensible architecture: Plugins and service provider interfaces allow deeper customization of authentication flows and identity integrations.
Ideal for
Keycloak is well suited for organizations that want a self-hosted identity platform and full control over authentication infrastructure. It is often considered by teams evaluating Azure AD B2C alternatives that prefer open-source solutions or need greater customization flexibility.
Also Read: Top 6 Keycloak Alternatives
Ory Kratos
Overview
Ory is an API-first identity platform composed of modular components including Kratos for authentication, Hydra for OAuth2 and OpenID Connect, and Keto for fine-grained authorization. Organizations evaluating Azure AD B2C alternatives often consider Ory when moving toward more flexible, service-based identity architectures.
Unlike Azure AD B2C’s managed platform and policy-driven configuration model, Ory is designed for cloud-native and microservices environments where authentication and authorization are handled directly through APIs. It can be deployed as a self-hosted open-source solution or consumed as a managed cloud service.
Key capabilities
API-driven authentication with Ory Kratos
OAuth2 and OpenID Connect server through Ory Hydra
Fine-grained authorization with Ory Keto
Self-hosted or managed cloud deployment options
Strengths
Modular identity architecture: Authentication, OAuth2, and authorization are delivered as independent services that can be deployed together or separately depending on architectural requirements.
API-first integration model: Identity services integrate directly with microservices and APIs rather than relying on centralized identity gateways or managed policy frameworks.
Open-source flexibility and control: Full source access and self-hosting support allow organizations to control infrastructure, customization, and compliance requirements.
Ideal for
Ory is well suited for engineering teams building cloud-native systems that want full control over authentication and authorization infrastructure. It is often considered by teams evaluating Azure AD B2C alternatives that prefer modular identity components and are comfortable managing identity services directly.
Also Read: Why BalkanID Moved From Ory Kratos to Descope
Conclusion
Azure AD B2C has been a widely used platform for customer identity, particularly for organizations building applications within the Microsoft Azure ecosystem. However, as identity requirements evolve and Microsoft transitions its external identity offerings, many teams are reevaluating whether Azure AD B2C remains the best long-term solution.
Modern applications increasingly require flexible authentication journeys, multi-tenant identity, and developer-friendly tooling. In these environments, the complexity of XML-based policies and configuration-heavy identity flows can slow development and increase operational overhead.
Among the alternatives, Descope stands out for teams that want a unified identity platform covering authentication, authorization, enterprise SSO, adaptive MFA, and orchestration in one system. By replacing policy-heavy configuration with visual workflows and an API-first architecture, Descope helps organizations modernize identity while reducing complexity.
If you're evaluating Azure AD B2C alternatives, check out our migration guide and how to add Descope as an OIDC Provider. If you'd like a demo, meet with our auth experts. Also, if you want to try Descope yourself, sign up for a Free Forever Account and start dragging & dropping your auth today!
