Inspect public keys and certificate structure

Paste public material to review its structure. Do not use production private keys; this inspector does not verify certificate trust chains, revocation or hostnames.

Runs locally in your browser

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.