SAML Debugger
Decode Base64/Base64URL SAMLResponse or paste Metadata XML to inspect issuer, status, NameID, attributes and certificates.
All processing on this page runs locally in your browser unless noted otherwise.
Ctrl/⌘ + Enter to run
Debugging only — no assertion signing and no full cryptographic verify.
Base64 or XML
Formatted XML
How to use
- Paste SAMLResponse Base64 or Metadata XML.
- Decode to see issuer, status, NameID and attributes.
- Copy formatted XML or open in DSig viewer if needed.
FAQ
Do you POST to my ACS?
No. Everything stays in the browser.
Is decoding local?
Yes.