vjyas.online

JWT Decoder & Debugger

Decode and inspect JWT header, payload, and signature instantly. Free jwt.io alternative — 100% private, runs in your browser.

100% private

Live demo
Sample JWT
Ready
JWT token
Payload

Auto-playing walkthrough — paste input, click decode, see the result

How to use JWT Decoder & Debugger

  1. Paste a JWT or Bearer token into the input field.
  2. Read the decoded header and payload as formatted JSON.
  3. Check exp, iat, and nbf claims with human-readable timestamps.
  4. Copy any section — verification requires your secret key locally.

Examples

Sample JWT

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWUsImlhdCI6MTUxNjIzOTAyMn0.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c

Frequently Asked Questions

Is my JWT sent to a server?
No. Decoding happens entirely in your browser. Your tokens never leave your device.
Does this verify the JWT signature?
No. This tool decodes and displays the token for debugging. Signature verification requires your secret or public key.