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JWT Decoder

Decode

Paste a JSON Web Token to inspect its header and payload claims and check whether it has expired. The signature is not verified — this only shows you what is inside the token, not whether it is authentic.

Decoding happens entirely in your browser — the token is never sent to a server or stored. Even so, avoid pasting real production tokens on a device or browser you don't trust, since a JWT payload often contains personal or session data.