| Name | Positioning | Cloud Service | Self Hosted | Open Source |
|---|
| AWS Cognito | Scalable, serverless user identity for AWS applications. Seamless integration with AWS services. | Yes | No | No |
| FusionAuth | Developer-focused IAM with extensive customization and self-hosting options. Strong emphasis on flexible authentication workflows. | Yes | No | No |
| Keycloak | Open-source flexibility and control. Highly customizable for diverse IAM needs, with strong community support. | No | Yes | Yes |
| Microsoft Entra ID | Comprehensive enterprise IAM, deeply integrated with the Microsoft ecosystem. Strong for organizations using Microsoft 365 and Azure. | Yes | No | No |
| Okta | Cloud-based, platform-agnostic IAM with a strong focus on ease of use and broad application integration. | Yes | No | No |
| WorkOS | Provides developer tools to quickly add enterprise features like SSO and SAML to SaaS applications. | Yes | No | No |
| Zitadel | Modern open source IAM, with a focus on cloud native applications, strong integration and auditing features, and easy migration from other systems like Keycloak. | Yes | Yes | Yes |