Loading...
Decode X.509 PEM certificates in your browser — subject, issuer, SANs, validity, key type, and SHA fingerprints. Nothing leaves your machine.
Paste any PEM-encoded X.509 certificate. Decoding happens entirely in your browser with a built-in ASN.1 parser — the certificate never leaves your machine. To grab a live server's cert:
echo | openssl s_client -connect example.com:443 -servername example.com 2>/dev/null | openssl x509