7 Best Keycloak Alternatives for Identity Management in 2026

Why look beyond Keycloak

Keycloak, an open-source identity and access management (IAM) solution, offers significant flexibility for organizations seeking to manage user authentication and authorization. Its appeal stems from being free to use and highly customizable, allowing developers to integrate it deeply into their infrastructure for single sign-on (SSO), API security, and microservices authentication Keycloak documentation. However, its self-hosted nature introduces operational overhead, requiring teams to manage server provisioning, maintenance, scaling, and security updates.

For organizations prioritizing reduced operational burden, faster time-to-market, or compliance with specific regulatory standards, managed IAM services can be more suitable. These services often provide built-in scalability, high availability, and routine security patching, offloading infrastructure management from development teams. Additionally, some proprietary alternatives offer advanced features like fraud detection, adaptive authentication, or specialized B2C identity flows that might require extensive custom development within Keycloak. Evaluating these aspects is crucial when considering whether to move from Keycloak to a different IAM solution.

Top alternatives ranked

1. 1. Auth0 — Developer-focused identity for web, mobile, and IoT

   Auth0 is a widely adopted identity platform that streamlines authentication and authorization for developers. It supports a broad range of application types, from traditional web apps to mobile and IoT devices, and integrates with various identity providers. Auth0 provides features like single sign-on (SSO), multi-factor authentication (MFA), passwordless login, and breach detection Auth0 official site. Its extensibility through Actions (serverless functions) allows for custom logic to be injected into the authentication flow.

   Auth0 differentiates itself through its developer-centric approach, offering SDKs, detailed documentation, and a focus on ease of integration. While it provides a free tier for basic use, its pricing scales with monthly active users (MAU) and included features. For organizations that prefer a fully managed service to reduce operational overhead, Auth0 presents a strong alternative to Keycloak's self-hosted model. It is particularly well-suited for businesses that need to rapidly implement secure identity solutions without managing underlying infrastructure.

   Best for:

   • Rapid development and deployment of secure identity solutions
   • Applications requiring advanced authentication features (e.g., passwordless, adaptive MFA)
   • Organizations preferring a fully managed, scalable identity service

   Auth0 profile page

2. 2. Okta — Enterprise-grade identity for workforce and customer access

   Okta is a leading independent provider of identity for the enterprise, offering solutions for both workforce identity and customer identity. For workforce identity, Okta provides SSO, adaptive MFA, and lifecycle management for employees, contractors, and partners. For customer identity (CIAM), Okta offers secure registration, login, and profile management for external users Okta official site. Okta's platform is built to handle complex enterprise requirements, including extensive integrations with business applications.

   Compared to Keycloak, Okta offers a more comprehensive suite of enterprise-focused features out-of-the-box, often with less configuration required from the end-user. Its managed service model means organizations offload the burden of infrastructure and security maintenance. While Okta's pricing is typically higher than self-hosting Keycloak, it includes robust support, compliance certifications, and a wide array of pre-built integrations. It is ideal for large enterprises with diverse identity needs and strict security or compliance mandates.

   Best for:

   • Large enterprises with complex workforce and customer identity requirements
   • Organizations needing extensive integrations with SaaS applications
   • Businesses prioritizing strong security, compliance, and reliability

   Okta profile page

3. 3. Azure Active Directory B2C — Scalable customer identity management on Azure

   Azure Active Directory B2C (Azure AD B2C) is a highly available, global identity management service designed for customer-facing applications. It enables businesses to customize and control how customers sign up, sign in, and manage their profiles across web, mobile, and desktop applications Azure AD B2C official site. Azure AD B2C supports millions of users and billions of authentications per day, integrating with social identity providers like Google, Facebook, and Microsoft accounts, as well as enterprise identity providers.

   As part of the Microsoft Azure ecosystem, Azure AD B2C benefits from Azure's global infrastructure and security capabilities. It offers fine-grained control over user journeys through custom policies, allowing for branding and specific business logic. For organizations already invested in Azure or those seeking a scalable, managed CIAM solution with extensive customization options, Azure AD B2C is a strong contender. While it can be more complex to configure than some other SaaS alternatives, it provides deep integration with other Azure services and enterprise capabilities.

   Best for:

   • Organizations deeply integrated into the Microsoft Azure ecosystem
   • Large-scale customer-facing applications requiring high availability and global reach
   • Businesses needing extensive customization of user authentication flows

   Azure Active Directory B2C profile page

4. 4. Supabase Auth — Open-source authentication for PostgreSQL databases

   Supabase Auth is an open-source authentication service that integrates directly with a PostgreSQL database, offering user management, secure authentication, and row-level security (RLS) policies Supabase Auth documentation. It supports various authentication methods, including email/password, magic links, phone sign-ins, and social logins (OAuth providers). Supabase Auth is part of the broader Supabase platform, which aims to be an open-source Firebase alternative, providing a backend-as-a-service.

   For developers building applications with a PostgreSQL backend, Supabase Auth offers a tightly integrated and often simpler solution than Keycloak, particularly for new projects. Its open-source nature aligns with Keycloak's philosophy, but Supabase also provides a managed hosting option, reducing the operational burden. It's less feature-rich for complex enterprise IAM scenarios than Keycloak or enterprise-grade alternatives but excels in providing quick, secure authentication for web and mobile applications with a focus on ease of use and developer experience. Migration from Keycloak might involve adapting to Supabase's specific RLS and user management patterns.

   Best for:

   • Developers building new applications with PostgreSQL backends
   • Projects prioritizing a simple, integrated, open-source authentication solution
   • Teams looking for a managed backend-as-a-service with built-in auth

   Supabase profile page

5. 5. AWS Cognito — Scalable user directory and authentication for AWS applications

   AWS Cognito provides identity management for web and mobile applications, allowing developers to add user sign-up, sign-in, and access control. It consists of two main components: User Pools, which are secure user directories that scale to millions of users, and Identity Pools, which enable granting users access to other AWS services AWS Cognito Developer Guide. Cognito supports standard identity protocols like OpenID Connect and OAuth 2.0, as well as social identity providers.

   For organizations deeply entrenched in the AWS ecosystem, Cognito offers native integration with other AWS services, such as Lambda, API Gateway, and S3, simplifying overall architecture and security. While Keycloak can also secure applications, Cognito provides a fully managed service that removes the operational burden of server management, patching, and scaling. Its pricing is based on monthly active users, making it cost-effective for applications with variable user loads. Cognito is a strong choice for AWS-native applications, though its learning curve can be steep for those unfamiliar with AWS.

   Best for:

   • Applications built entirely within the AWS ecosystem
   • Serverless architectures requiring integrated user authentication
   • Developers comfortable with AWS services and infrastructure

   AWS Cognito profile page

6. 6. DigitalOcean App Platform — Integrated authentication for deployed applications

   DigitalOcean App Platform is a Platform-as-a-Service (PaaS) that simplifies deploying and scaling web applications, APIs, and static sites. While it doesn't offer a dedicated, standalone IAM service like Keycloak, it provides mechanisms to integrate authentication services and manage user access within the context of applications deployed on its platform DigitalOcean App Platform official site. This often involves integrating third-party authentication providers or implementing custom authentication logic within the deployed application.

   For developers using DigitalOcean for their application hosting, the App Platform offers a streamlined deployment experience. The primary advantage over Keycloak is the unified hosting and deployment environment. However, Keycloak provides robust, dedicated IAM capabilities that would need to be separately integrated or configured within an application hosted on the App Platform. DigitalOcean's offering is more about application deployment with authentication as an integrated component rather than a standalone, feature-rich IAM system. It's suitable for smaller teams or projects prioritizing simplicity of application deployment with standard authentication patterns.

   Best for:

   • Developers hosting applications on DigitalOcean and needing integrated authentication
   • Smaller projects or startups prioritizing ease of application deployment
   • Teams willing to integrate external identity providers or custom auth logic

   DigitalOcean App Platform profile page

7. 7. Netlify Identity — User management for JAMstack applications

   Netlify Identity is an authentication and user management service designed specifically for JAMstack (JavaScript, APIs, Markup) applications deployed on Netlify. It provides sign-up, login, password recovery, and role-based access control (RBAC) out of the box Netlify Identity official site. Netlify Identity integrates seamlessly with Netlify Functions and offers social login providers, email/password authentication, and supports custom JWTs.

   Compared to Keycloak, Netlify Identity is far more specialized, focusing on the needs of modern, client-side rendered JAMstack applications. Its primary benefit is its deep integration with the Netlify platform, simplifying authentication for sites hosted there. While Keycloak offers broader, more flexible IAM capabilities for diverse application types and enterprise needs, Netlify Identity provides a simpler, opinionated solution for its target audience. It removes the need to manage an external identity provider for many JAMstack projects, offering a faster path to secure user authentication for developers already using Netlify for hosting.

   Best for:

   • JAMstack applications hosted on Netlify
   • Developers prioritizing ease of integration for client-side authentication
   • Projects needing basic user management and role-based access control

   Netlify profile page

Side-by-side

How to pick

Selecting an identity and access management (IAM) solution involves evaluating several factors beyond core authentication. Your choice will depend on your organization's specific needs, technical capabilities, existing infrastructure, and budget.

Consider your deployment preference

• Self-hosted vs. Managed Service: Keycloak is open-source and self-hosted, offering maximum control but requiring significant operational effort for deployment, scaling, security, and maintenance. If your team has the resources and expertise for this, and compliance mandates require full control over the identity infrastructure, Keycloak or self-hosted Supabase Auth might be suitable.
• SaaS Solutions: Auth0, Okta, Azure AD B2C, AWS Cognito, and Netlify Identity are managed services. They offload infrastructure management, security patching, and scalability to the provider. This approach reduces operational burden and can accelerate development, but it means less control over the underlying infrastructure and typically involves recurring costs based on usage.

Evaluate your ecosystem and application type

• Cloud Provider Lock-in: If your applications are deeply integrated with a specific cloud provider, choosing an IAM solution native to that ecosystem can offer seamless integration and simplified management. For instance, AWS Cognito is ideal for AWS-native applications, and Azure AD B2C is best for those within the Azure environment.
• JAMstack Applications: For modern JAMstack architectures, Netlify Identity provides a tightly integrated solution for user management directly within the Netlify platform.
• PostgreSQL Backends: Supabase Auth offers a compelling, open-source option for applications built around a PostgreSQL database, providing integrated authentication and row-level security.
• General Web/Mobile/API: Auth0 and Okta are versatile, offering broad support for various application types and integration with numerous identity providers, making them strong choices for diverse application portfolios.

Assess your feature requirements

• Basic vs. Advanced Features: For basic sign-up/sign-in flows, solutions like Supabase Auth or Netlify Identity might suffice. For advanced features like adaptive MFA, fraud detection, passwordless login, and extensive enterprise integrations, Auth0 or Okta offer more comprehensive capabilities out-of-the-box.
• Customization Needs: Keycloak, Auth0 (via Actions), and Azure AD B2C (via custom policies) provide significant customization options for authentication flows and user experiences. If your business logic requires highly specific identity processes, these options allow for deeper tailoring.
• Compliance and Security: All listed alternatives offer robust security features, but specific compliance certifications (e.g., HIPAA, SOC 2, ISO 27001) might vary. Enterprises with strict regulatory requirements should verify that the chosen provider meets their specific compliance mandates. CyberArk, while not a direct Keycloak alternative, provides solutions for privileged access management and identity security that can complement any IAM system, offering advanced threat protection CyberArk Identity Security Platform.

Consider developer experience and community support

• Documentation and SDKs: A good developer experience includes clear documentation, comprehensive SDKs, and active community support. Keycloak has a large open-source community, while the commercial alternatives often provide dedicated support channels and extensive online resources.
• Ease of Integration: Solutions like Auth0 and Supabase Auth are often praised for their ease of integration, offering quickstarts and intuitive APIs that reduce development time.

By carefully weighing these factors against your project's constraints and long-term goals, you can make an informed decision on the best Keycloak alternative for your needs.