JWT Decoder
Inspect JSON Web Token claims, header algorithms, and expiration status in your browser. No tokens are sent over the network.
[Notice]Client-side inspection only. Cryptographic signatures are not verified here. Do not paste production access tokens on untrusted machines.
Encoded JWT Token
TOKEN ACTIVEExpires: Wed, 18 May 2033 03:33:19 GMT
Header (Algorithm & Type)JSON
{
"alg": "HS256",
"typ": "JWT"
}Payload Claims (Data & Timestamps)JSON
{
"sub": "usr_98284",
"name": "Alex Miller",
"role": "admin",
"iat": 1516239022,
"exp": 1999999999
}How to Use
01.Paste your encoded JWT token into the input field.
02.Inspect the decoded Header, Payload claims, and Signature segments.
03.Check expiration date status and issued-at timestamps.
Frequently asked questions
No. Client-side decoding inspects payload and header claims only. Signature verification requires secret keys on your backend authentication server.
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