SSL Certificate & CSR Decoder

Paste an SSL/TLS certificate or a Certificate Signing Request (CSR) to extract and display its contents — subject, issuer, validity, public key, Subject Alternative Names, fingerprints and extensions — in a clear, readable format.

CSR Example

-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----

SSL Certificate Example

-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----