JWT Payload Decoder
Decode and inspect a JWT token's header and payload instantly. Free, runs in your browser.
How to use this tool
- Enter jwt token in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your decoded payload and the full breakdown beneath it.
JSON Web Tokens (JWT) consist of three Base64URL-encoded parts. This tool decodes the header and payload so you can inspect the claims.
Frequently asked questions
- Is it safe to decode JWTs here?
- Yes — decoding only reads the header and payload which are not secret. The signature is not verified but is also not exposed beyond what is in the token itself.