SAML Response Validator
Debug a SAML Response: check status, timing, audience, recipient, InResponseTo, issuer, and signature presence — and find out why your SSO login is failing
Validation runs entirely in your browser. The SAML response you paste — including live assertions — never leaves this page.
Note: This validator checks structure and timing (the cause of most SSO failures) and reports whether a signature is present. It does not cryptographically verify the XML signature — that requires canonicalization and your IdP's certificate. A clean report is not proof the signature is valid.