JWT Signature Validator
Paste a JWT and provide the secret or public key to verify its signature.
Input
Characters: 155HS256
This tool verifies signatures locally in your browser. No data is sent to any server.
Decoded Payload
HEADER
{
"alg": "HS256",
"typ": "JWT"
}PAYLOAD
{
"sub": "1234567890",
"name": "John Doe",
"iat": 1516239022
}SIGNATURE
SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c