JWT Decoder
Decode JWT header and payloadRuns locally · nothing uploaded
Header
{
"alg": "HS256",
"typ": "JWT"
}Payload
{
"sub": "1234567890",
"name": "John Doe",
"admin": true,
"iat": 1767225600,
"exp": 1798761600
}Signature
signature-not-verified
Also works as:jwt parserdecode jwt
How to use
- 1Paste a JWT.
- 2Read the decoded header and payload.
- 3Check the expiry time.
FAQ
Does it verify the signature?
No. Verification requires the secret or public key. This tool only decodes.
Is it safe to paste a token?
Decoding happens locally and nothing is sent. Using test tokens is still recommended.