JWT Decoder
Decode and inspect JSON Web Tokens (header, payload, signature) without sending data anywhere.
Decoding happens entirely in your browser — the token is never sent anywhere. This tool does not verify the signature.
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About the JWT Decoder
Decode and inspect JSON Web Tokens (header, payload, signature) without sending data anywhere. This tool runs entirely client-side — your data is processed locally in your browser and is never uploaded to a server, making it safe to use with sensitive information.