JWT Decoder, Verifier & Security Inspector
Browser-only JWT decoder, verifier, and security inspector. No token data is sent to a server.
Encoded
Header
Paste a JWT to see the header
Payload
Paste a JWT to see the payload
No token data leaves your browser except JWKS public key fetches you explicitly initiate.
Browser-only JWT decoder, verifier, and security inspector. No token data is sent to a server.