JWT Decoder
Decode a JWT to view its header and payload.
Decode only — the signature is not verified.
Paste a JSON Web Token to inspect its header and payload. Signature is NOT verified — no secret is used.
Cómo usar
- Paste a JWT.
- View the decoded header and payload.
- Check the expiry if present.
Preguntas frecuentes
- Is the signature checked?
- No, this only decodes; it never verifies signatures.
- Is my token sent anywhere?
- No, decoding happens in your browser.