JWT Token Decoder
Decode and analyze JSON Web Tokens (JWT) safely in your browser.
Encoded Token
Client-side fetch; CORS must allow the request.
JWT Scenarios & Examples
Standard Access Token
A typical authenticating token with subject, issuer, and expiration.
{
"sub": "1234567890",
"name": "John Doe",
"iat": 1516239022,
"exp": 1516242622,
"iss": "https://auth.example.com"
}About this tool
Decode and inspect JSON Web Tokens (JWT) online. Free JWT decoder with header/payload analysis and security validation — no signup. JWT Token Decoder runs in the browser on DevTools. There is no signup, and your input stays on this device unless the tool explicitly performs a live network lookup.
What this tool does not do
- JWT Token Decoder is a free in-browser utility, not a hosted API. It does not keep server-side history and is not a substitute for production verification in your own stack.
How do I use this tool?
How do I use JWT Token Decoder?
Open JWT Token Decoder, enter or paste your input, and copy the result. The page works without an account.
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