JWT Signature Verifier
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JWT Signature Verifier

Verify signed JWTs with pasted public JWK, JWKS, or PEM keys.

JWT inputCompact token
Verification key or HMAC secretJWK, JWKS, PEM SPKI/certificate, or shared secret
Supports HS256/384/512 shared secrets, RSA, RSA-PSS, ECDSA, and EdDSA where Web Crypto supports them.

Signature verification does not automatically validate issuer, audience, expiration, nonce, or authorization policy.