Code & Data Utilities

JWT Decoder

Decode JWT headers and payloads locally in your browser.

Decoded only; signature is not verified.

JWT input

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJhdXJ1bSIsIm5hbWUiOiJBdXJ1bSBEZXZlbG9wZXIiLCJpYXQiOjE3MDAwMDAwMDAsImV4cCI6MTkwMDAwMDAwMH0.signature_placeholder

Token Claims Summary

🟢 Active (Valid)

Expires At (exp)Mar 17, 2030, 5:46:40 PMExpires in 1279d

Issued At (iat)Nov 14, 2023, 10:13:20 PM

Algorithm (alg)HS256

🔒 This tool safely decodes the payload locally in your browser without verifying the cryptographic signature.

HEADER (Header)

{
  "alg": "HS256",
  "typ": "JWT"
}

PAYLOAD (Payload Claims)

{
  "sub": "aurum",
  "name": "Aurum Developer",
  "iat": 1700000000,
  "exp": 1900000000
}

JWT guide

Enter a JWT or load the sample.
Review the header and payload.

Header: The first segment describing the token type and algorithm.
Payload: The second segment containing claims.
Signature: The third segment; this tool does not verify it.
Claims: Payload fields such as iat, nbf, and exp.

Limitation: This tool does not verify signatures or trust tokens.

Safety: Do not enter passwords or real authentication tokens.