Duende IdentityServer alternatives

Nearest on its board

1. 11
   CI

   Curity Identity Servercurity.io

   Curity Identity Server is a standards-based platform for securing users, APIs, machines, and AI agents.

   6.3 APIOpenFree Free tier
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2. 13
   A

   authentikgoauthentik.io
   6.3 APIOpenFree Free tier · from $5/mo
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3. 10
   F

   Fronteggfrontegg.com

   Frontegg provides customer identity and access management for customer-facing applications.

   6.4 APIOpenFree Free tier
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4. 14
   IV

   IBM Verifyibm.com

   IBM Verify is an identity and access management platform for securing human and non-human identities across web, mobile and hybrid enterprise environments.

   6.2 APIOpenFree From $15,899/yr
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5. 9
   AO

   Abblix OIDC Serverabblix.com

   Abblix OIDC Server is a .NET library implementing OAuth 2.0 and OpenID Connect on the server side for building an OpenID Provider.

   6.4 APIOpenFree Free tier · from $3,000/yr
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6. 15
   MD

   Microsoft Defender for Businessmicrosoft.com

   Microsoft Defender for Business is an endpoint security solution for small and medium-sized businesses with up to 300 users that helps protect devices from…

   6.2 APIOpenFree —
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7. 8
   AC

   Apereo CASapereo.github.io

   Apereo CAS is an enterprise multilingual single sign-on solution and identity provider for the web.

   6.4 APIOpenFree Free tier
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8. 16
   AG

   Auth0 Guardianauth0.com

   Auth0 Guardian is a mobile app for completing MFA with push notifications or temporary one-time passwords.

   6.2 APIOpenFree Free tier · from $35/mo
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9. 7
   C

   Casdoorcasdoor.ai

   Casdoor is an open-source identity and access management and single sign-on platform supporting OAuth 2.0, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA…

   6.4 APIOpenFree Free tier
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10. 17
    D

    Descopedescope.com

    Descope is a customer and agentic identity platform for authentication, user management, authorization and identity journeys.

    6.2 APIOpenFree Free tier · from $249/mo
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11. 6
    O

    OpenIddictopeniddict.com

    OpenIddict is a free and open source framework for building OAuth 2.0/OpenID Connect clients and servers in .NET.

    6.5 APIOpenFree Free tier
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12. 18
    S

    Stytchstytch.com

    Stytch describes itself as an identity platform for humans and AI agents that combines authentication, authorization, and security.

    6.2 APIOpenFree Free tier
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13. 5
    OC

    Okta Customer Identity Cloudauth0.com
    6.5 APIOpenFree Free tier · from $35/mo
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14. 19
    JS

    Janssen Serverdocs.jans.io

    Janssen Server is an authentication and authorization server that exposes identity features through standards based endpoints.

    6.1 APIOpenFree Free tier
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15. 4
    F

    FusionAuthfusionauth.io

    FusionAuth is a customer identity and access management server providing authentication, authorization and user management.

    6.7 APIOpenFree Free tier · from $162/mo
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16. 20
    K

    Keycloakkeycloak.org

    Keycloak adds authentication to applications and secure services, so they do not need to store or authenticate users themselves.

    6.1 APIOpenFree Free tier
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17. 3
    GC

    Google Cloud Identitycloud.google.com

    Cloud Identity is Google's identity-as-a-service platform for centrally managing users and groups and federating identities with Active Directory or Microsoft…

    6.7 APIOpenFree Free tier
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18. 21
    K

    Kindekinde.com

    Kinde combines authentication, access management, billing, and feature management for building, securing, and monetizing SaaS products.

    6.1 APIOpenFree Free tier · from $25/mo
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19. 2
    A

    Authgearauthgear.com

    Authgear is an identity-as-a-service platform for authentication and user management in web and mobile applications.

    7.6 APIOpenFree Free tier · from $50/mo
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20. 22
    L

    Logtologto.io

    Logto is an identity and access management solution that provides authentication and authorization for modern apps and SaaS products.

    6.1 APIOpenFree Free tier · from $24/mo
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