JWT Token Debugger — Decode & Inspect JSON Web Tokens Safely

Safely decode JWT headers and payload claims in real time. Absolute privacy guarantee: tokens never touch a server.

Runs in your browser. Your files never leave your device. See how to check

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How to do it

  1. 1
    Choose your settings

    Fill in the details or pick the options you need.

  2. 2
    See the result

    The preview updates right away as you change things.

  3. 3
    Download or save it

    Save the result to your device. Nothing is sent to or stored on a server.

About this tool

The secure developer-grade JSON Web Token debugger. Paste tokens containing auth data, API roles, or custom claims. Highlights algorithm headers, parses UNIX timestamps (exp, iat, nbf) into human-readable local times, checks active vs expired status, and formats payload JSON for easy copying.

Tips for best results

Take a moment to read the options before you start, and try the tool with a small sample first. Everything runs in your browser on your own device, so nothing you type or add is uploaded, and closing the tab clears it. If something does not look right, reload the page and try again, or use the report link on this page to tell us what went wrong so we can fix it. If a result still looks wrong, change one value at a time to see which box matters most. Bookmark this page if you will need the tool again.

Quick facts

Frequently asked questions

Is it safe to paste production JWT tokens here?

Yes! Unlike other online tools, ShobFree performs all decoding inside your local browser memory. Zero network requests are made.

Does it show expiration status?

Yes, it automatically converts the 'exp' timestamp into your local date and time and alerts you whether the token is active or expired.

Can I copy the decoded payload as JSON?

Yes, click 'Copy' above the Header or Payload box to copy formatted JSON with one click.

Can I test with sample tokens?

Yes, click 'Load Sample JWT' to see an instant demo of decoded claims.

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Completely freeNo cost, no sign-up
Files stay privateEverything runs in your browser
Easy in your languageAvailable in many languages