JWKS Generator
Generate 2048-bit RSA key pairs, manage kid values, and create JWKS (JSON Web Key Sets)
containing public keys only. You can also sign RS256 JWTs using the generated private key, inspect the payload, and copy keys, JWKS, or tokens with a single click.
This tool is useful for testing JWT authentication flows, validating key rotation with kid, and preparing sample JWKS endpoints for development, debugging, and documentation.
All cryptographic operations run entirely in your browser.
No private keys, payloads, or tokens are uploaded to any server, ensuring safe local testing.
Keys are created locally and never uploaded anywhere.
The JWKS contains only the public key.
RS256 signature uses the generated private key.
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