Free utility

PEM Block Inspector

Inspect bounded PEM labels, decoded byte lengths, and fingerprints.

Processing stays on this device. Your input is not uploaded, sent to an external service, or saved by Crow Tech.

Workbench

Inputs stay on this page. Use the explicit action to validate and produce a result.

Reports labels, decoded byte counts, and SHA-256 fingerprints only. It does not validate ASN.1, certificates, keys, signatures, expiry, or trust.