CSR Decoder
Decode a PEM certificate signing request and inspect its subject, public key, signature algorithm and requested SANs.
Privacy: decoding happens locally in your browser. Your CSR is not uploaded. A CSR contains public-key information, not your private key.
Supports PEM blocks labelled CERTIFICATE REQUEST or NEW CERTIFICATE REQUEST.
Decoded CSR details
Subject attributes
Subject Alternative Names
This decoder does not verify the CSR signature, domain ownership or certificate issuance eligibility.