JWT Decoder
DeveloperDecode a JWT to read its header and payload, and see the expiry and issued-at times in a readable format. Decoding happens locally — your token never leaves the page.
Runs entirely in your browser — nothing is uploaded
Decoding only — this tool does not verify the signature. Your token is processed locally and never sent anywhere.
Frequently asked questions
Does this verify the token signature?+
No — it only decodes and displays the header and payload. Signature verification requires the secret/key and should be done server-side.
Is it safe to paste my token here?+
Yes. Decoding happens entirely in your browser; the token is never sent anywhere. Still, treat production tokens with care.