KEY INSPECTOR

Parse and inspect PEM-encoded RSA, EC, and Ed25519 keys. See key size, algorithm, fingerprint, and modulus. Completely client-side — your keys never leave your browser.

PEM KEY INPUT

INSPECTION RESULT

Paste a PEM key on the left to inspect it.

About Key Inspector

Paste any PEM-encoded key to instantly see its type, algorithm, size, and fingerprint. Supports RSA private/public keys (PKCS#1 and PKCS#8), EC keys (SEC 1, PKCS#8, SPKI), Ed25519 keys, OpenSSH public keys, and encrypted PKCS#8 keys.

100% client-side — all parsing uses the Web Crypto API and a minimal DER/ASN.1 reader. Your keys are never sent anywhere. This tool complements SSH Keygen and Certificate Decoder.