Private Key JWT Builder and Verifier

Build and verify fictional RFC 7523 client assertions with an in-memory RSA key pair; no token endpoint is contacted.

Generated private keys and assertions exist only in this page session. This proves local signature mechanics, not client registration or authorization.

Client ID

Token endpoint audience

Assertion packageTemporary in-memory output

Waiting for input…

AssertionWaiting

AlgorithmRS256

Lifetime300 seconds