What PEM Inspector does
PEM wraps DER-encoded certificate bytes in Base64. ParseNest parses common X.509 fields and computes a fingerprint without uploading the certificate.
Common uses
- Check certificate expiration
- Confirm subject and issuer
- Compare SHA-256 fingerprints
Privacy and limitations
Public certificates are usually safe to inspect, but never paste a PEM private key into a website.
Always validate security-sensitive output in the authoritative application or platform.
Frequently asked questions
Can I paste a private key?
Do not paste private keys. The inspector accepts CERTIFICATE blocks only.
Is the certificate verified?
The inspector parses fields; it does not build or validate a trust chain.