Does this verify a JWT?

No. It inspects keys and computes identifiers. Signature verification also requires the signed token, algorithm policy, issuer context, and claim validation.

JWK and JWKS Inspector

About JWK and JWKS Inspector

Parses JSON Web Keys locally and computes the canonical SHA-256 thumbprint defined by RFC 7638 for RSA, EC, OKP, and symmetric octet keys. It exposes structural facts without pretending to validate a signature, issuer, trust chain, revocation status, or possession of private key material.

Accepts either one JWK or a JWKS keys array.
Computes thumbprints with the browser Web Crypto API.
Never sends pasted keys to a server.

Frequently Asked Questions

Does this verify a JWT?: No. It inspects keys and computes identifiers. Signature verification also requires the signed token, algorithm policy, issuer context, and claim validation.

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