Paste your JWT below to decode it instantly and securely in your browser.
JWT Input
Decoded Token
Header
Payload
Signature
Frequently Asked Questions (FAQ)
Is this JWT Decoder safe to use?
Yes! Decoding happens entirely in your browser using JavaScript. Your JWT is never sent to any server, ensuring your data remains private.
What parts of the JWT are shown?
The decoder displays the Header and Payload (as formatted JSON with syntax highlighting) and the Signature (as a base64url string).
Can I verify the JWT signature with this tool?
This tool focuses purely on decoding the content of the JWT (Header and Payload). Signature verification requires the secret or public key associated with the token, which is not handled by this client-side tool for security reasons.