KMMR Online Tools

Certificate

Certificate Decoder

Paste or upload PEM/DER/PKCS#7/PKCS#12 and extract expiry, SAN, KeyUsage/ExtKeyUsage, fingerprints, OCSP/CRL URLs.

Paste / Upload

Supports PEM, DER, P7B, PFX

Key fields

Expiry, fingerprints, SAN, KeyUsage, OCSP/CRL

Privacy

Inputs are not stored

Decode certificate

Paste or choose a file (up to 1MB)

We do not store your inputs

pem/crt/cer/der/p7b/p7c/pfx/p12 supported. Text has priority.

Up to 256 characters. Parsing is attempted even if blank.

Decoded certificates

If multiple certs exist, all are listed in order.

0

No certificates yet.

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