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JWT Decoder
Use our free JWT Decoder tool to simplify your developer tools workflow. Fast, secure, and works directly in your browser.
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How to use JWT Decoder?
- Paste your raw JWT string into the Encoded JWT box.
- The payload and header are instantly decoded.
- If the token is valid, you'll see the structured JSON output of the Header and Payload.
- Note: We do not verify the signature cryptography, we only base64-decode the visual string.
Frequently Asked Questions
Yes. This tool relies exclusively on JavaScript executed entirely in your local browser. Your tokens are never transmitted to our servers or stored in any logs.
A valid JWT consists of three parts separated by dots (`.`). Make sure you removed whitespace and pasted the entire token. Sometimes tokens are encrypted (JWE) instead of just encoded (JWS).
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