JWT Decoder

Decode JSON Web Tokens locally in your browser instantly.

Encoded Token

Header (Algorithm & Type)

{
  // Awaiting token input...
}

Payload (Data & Claims)

{
  // Awaiting token input...
}

Verify Signature

hmacSha256(base64UrlEncode(header) + "." + base64UrlEncode(payload), secret_key)