OpsBench

CRT Decoder

Read subject, issuer, SANs, fingerprints and expiry from a certificate.

● Runs on our server
Decoding runs on our server with OpenSSL. A certificate is public information — no private keys involved.

How it works

We parse the X.509 certificate with OpenSSL and show the subject, issuer, SANs, validity window and SHA-1 / SHA-256 fingerprints.

Related tools

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