SAML Assertion Decoder

Decode, inspect, and debug SAML responses and assertions for enterprise SSO integrations

Base64-Encoded SAML Response Paste the Base64 value from the SAMLResponse POST parameter

Raw SAML XML Paste the raw XML of a SAML Response or Assertion

URL-Encoded SAML Paste a URL-encoded (and possibly Base64-encoded) SAML value

Security Note: Decoding happens entirely in your browser. No SAML data is ever sent to any server.

Response Overview

Assertion Details

Attributes

Name	Value(s)

Formatted XML

Understanding SAML

How Security Assertion Markup Language powers enterprise single sign-on

What is SAML?

SAML 2.0 is an XML-based standard for exchanging authentication and authorization data between an Identity Provider (IdP) and a Service Provider (SP). It's the backbone of enterprise SSO.

The SAML Flow

The user authenticates at the IdP, which issues a signed SAML Response containing assertions about the user's identity and attributes. The SP validates the signature and grants access.

Assertions

A SAML Assertion contains the Subject (who), Conditions (when it's valid), Authentication Statements (how they logged in), and Attribute Statements (user data like email, roles, and groups).

Need enterprise SSO for your app?

AuthAction supports SAML 2.0, OpenID Connect, and more — giving your enterprise customers the SSO experience they expect.

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