SAML Decoder
Decode and inspect SAML assertions and responses for SSO troubleshooting. Code never leaves your device — formatting and validation run locally in your browser.
How to Use the SAML Decoder
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Frequently Asked Questions
Encoding layers?
Base64 only — paste base64 SAML, not DEFLATE-compressed redirect bindings, which need inflating first.
Request or Response?
Both — AuthnRequests and Response assertions decode fully here.
Certificates visible?
No cert extraction — the readout covers type, issuer, destination, status, and SAML-namespace presence only.
Is my input uploaded anywhere when using SAML Decoder?
No — decoding runs locally in your browser, free with no signup.
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Last updated October 2026