JWT Token Decoder

100% Free & Client-Side

Decode JSON Web Tokens (JWT) client-side to inspect payload claims, headers, and expiration dates securely.

Encoded Token

Paste encoded JWT token here...

Decoded Payload (100% Client-Side)

HEADER Algorithm & Token Type

PAYLOAD Claims & User Data

SIGNATURE Verification Hash

No signature present

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Client-Side Privacy Guarantee

All data entered into JWT Token Decoder is processed locally inside your web browser using JavaScript. No tokens, passwords, JSON payloads, or text inputs are ever transmitted or stored on external servers.