Best ASP.NET SAML Alternatives ranked by AI · updated Aug 2026

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ASP.NET SAML is an SSO integration plugin for ASP.NET applications that connects service providers and identity providers using SAML 2.0. It provides configuration, metadata handling, attribute mapping, and support for common enterprise identity platforms.

Developer: miniOrange Price: N/A 🎯 developers.onelogin.com/saml

Single Sign-On 🔒 Authentication SAML identity asp.net

Top 6 ASP.NET SAML alternatives

SAML for ASP.NET

ComponentSpace

💡 Pick it for deeper SAML control, broader protocol coverage, and commercial .NET support.

SAML for ASP.NET is a commercial .NET toolkit for adding SAML 2.0 service-provider and identity-provider capabilities to ASP.NET applications. It includes APIs...

Pros

Broader SAML protocol coverage than the miniOrange plugin
Supports both service-provider and identity-provider scenarios
Mature commercial support for enterprise .NET deployments

Cons

Higher licensing cost than open-source .NET libraries
Requires more development work than a purely guided plugin
Can be excessive for a single basic SSO connection

N/A

Alternatives to SAML for ASP.NET → Visit site

ITfoxtec Identity SAML 2.0

ITfoxtec

💡 Pick it for a free, code-first SAML library with strong ASP.NET Core support.

ITfoxtec Identity SAML 2.0 is an open-source .NET library for implementing SAML 2.0 service-provider authentication. It targets ASP.NET Core and .NET applications...

Pros

No license fee, unlike the miniOrange plugin
Provides direct API-level control over SAML behavior
Strong fit for modern ASP.NET Core and .NET applications

Cons

Requires more SAML expertise and coding than a configuration-led plugin
Less suitable for teams that need a commercial visual administration layer
Integration examples focus more on ASP.NET Core than older ASP.NET Framework applications

Free, open source

Alternatives to ITfoxtec Identity... → Visit site

Sustainsys.Saml2

Sustainsys

💡 Pick it for a proven free alternative focused on standard ASP.NET SAML service-provider integrations.

Sustainsys.Saml2 is an open-source .NET library for integrating SAML 2.0 service-provider authentication into web applications. It is used with ASP.NET and ASP.NET...

Pros

Free and widely used for standard SAML service-provider integrations
Supports both classic ASP.NET and ASP.NET Core scenarios
Configuration-driven setup can be simpler than building SAML handling directly

Cons

Less comprehensive for identity-provider scenarios than ComponentSpace
Documentation and troubleshooting require more technical knowledge
Advanced customization can be constrained by its middleware-oriented design

Free, open source

Alternatives to Sustainsys.Saml2 → Visit site

Keycloak

💡 Pick it when you need a self-hosted identity platform serving multiple ASP.NET and non-ASP.NET applications.

Keycloak is an open-source Identity and Access Management solution aimed at modern applications and services.

Free and open-source

Alternatives to Keycloak → Visit site

Auth0

💡 Pick it to outsource SAML operations and provide one hosted identity layer across many application platforms.

Auth0 provides a comprehensive platform for authentication and authorization.

Pros

Customizable authentication flows
Scalability
Advanced security features

Cons

Complex setup for some use cases
Higher learning curve

Free tier available. Paid plans start at $23/month.

Alternatives to Auth0 →

Microsoft Entra ID

Microsoft

💡 Pick it when your organization already relies on Microsoft 365 and needs enterprise SSO controls around ASP.NET apps.

Microsoft Entra ID is a cloud identity and access management service for organizations using Microsoft 365, Azure, and third-party applications. It provides...