This comparison focuses on Duende IdentityServer and FusionAuth's OpenID Connect protocol support. Looking for their (C)IAM features like MFA, SSO, and user management? Compare Duende IdentityServer vs FusionAuth on (C)IAM features.

Duende IdentityServer vs FusionAuth

Compare Duende IdentityServer and FusionAuth side by side across grant types, token endpoint authentication methods, extensions, endpoints, FAPI compliance, and protocol features.

Duende IdentityServer🇺🇸

FusionAuth🇺🇸

Duende IdentityServer supports 31 of 44 tracked features, FusionAuth supports 21.

Feature Comparison

Grant Types

Extensions

Endpoints

Token Endpoint Authentication Methods

none
client_secret_basic
client_secret_post
client_secret_jwt
private_key_jwt
tls_client_auth

Prompts

Features

Financial-grade API (FAPI)

Looking for a different comparison? See the full OpenID Connect Providers benchmark.

Looking for their (C)IAM features like MFA, SSO, and user management? Compare Duende IdentityServer vs FusionAuth on (C)IAM features.

More Duende IdentityServer comparisons

More FusionAuth comparisons

FusionAuth vs Keycloak FusionAuth vs Ping Identity FusionAuth vs Authlete FusionAuth vs Curity FusionAuth vs Okta FusionAuth vs Auth0 FusionAuth vs Zitadel FusionAuth vs Ory Hydra FusionAuth vs Authelia FusionAuth vs Microsoft Entra ID FusionAuth vs CyberArk FusionAuth vs AWS Cognito FusionAuth vs Kinde FusionAuth vs Clerk FusionAuth vs SailPoint Identity Security Cloud

Note: The current data is based on provider documentation/experience and may not be 100% accurate. Please open an issue if you have spotted any inconsistencies.