PEM to JWK Converter
Format and convert Public/Private PEM keys to JSON Web Key (JWK) structures client-side.
Input PEM Key
JWK Output
Frequently Asked Questions
What is the purpose of converting PEM to JWK?
PEM (Privacy-Enhanced Mail) format is typically used in OpenSSL, web servers, and traditional certificate stores. JWK (JSON Web Key) represents cryptographic keys as JSON objects, making them standard for OAuth 2.0, OpenID Connect, and JOSE JWT validation.
Is my private or public key uploaded to a server?
No. All key parsing and JWK structure transformations happen client-side in your browser. No key material is transmitted over the network.
Which key algorithms does JWK support?
Common JWK representations support RSA (e.g. RS256, RS512) and Elliptic Curve keys (e.g. P-256, Ed25519) with standardized properties like kty, n, e, crv, x, and y.