PEM Viewer
Decode and inspect PEM-encoded SSL/TLS certificates, public keys, and private keys. View subject, issuer, validity dates, SANs, and more.
Supports X.509 certificates, public keys, and private keys
PEM Viewer — Decode SSL Certificates & Keys
PEM (Privacy Enhanced Mail) is the most common format for SSL/TLS certificates and cryptographic keys. PEM files are Base64-encoded DER data wrapped in header and footer lines like -----BEGIN CERTIFICATE-----.
Supported PEM Types
X.509 Certificate
SSL/TLS certificates for websites, code signing, and email. Contains subject, issuer, validity, and SANs.
Public Key
RSA, EC, or DSA public keys in SPKI format. Safely shareable for encryption and signature verification.
Private Key
RSA, EC, or DSA private keys in PKCS#8 or PKCS#1 format. Keep these strictly confidential.