PEM, Certificate & JWK Inspector LOCAL ONLY

Inspect public JWK/JWKS data, PEM containers, certificate details, and SHA-256 fingerprints locally without sending key material to a remote service.

Do not paste a production private key or secret. This page warns when private JWK or PEM material is detected, but it cannot make sensitive input safe.
PEM, certificate request, JWK, or JWKS

For certificates, the inspector reads container and common X.509 fields when available. It does not verify trust chains, revocation, hostname matching, or live server TLS.

Inspection summary
  • Inspect a PEM, certificate request, JWK, or JWKS document to see local findings.

Inspect structure before integration

Use public JWK sets for verification and key rotation review. Certificate trust, private-key handling, cryptographic policy, and production TLS configuration require their own dedicated controls.

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