JWT Decoder
Decode a JSON Web Token's header and payload locally. The token never leaves your browser — no signature verification is performed.
{
"alg": "HS256",
"typ": "JWT"
}{
"sub": "1234567890",
"name": "John Doe",
"iat": 1516239022
}About JWT Decoder
Decode and inspect JSON Web Token claims. OpenToolkit is free to use, requires no account, and processes your work locally in your browser whenever the tool allows it.