✦SHOFIDEV_TOOLS
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BACKEND100% Client-Side

JWT Debugger & Token Inspector

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JWT Debugger & Token Inspector

Inspect claims, check expiry status, and decode headers without any server communication.

About This Tool

Client-side JWT decoder, claim analyzer, and token lifetime inspector for backend developers.

Decode and inspect JSON Web Tokens, verify expiration countdown, and analyze claims securely in-browser.

1How to Use

  1. 1Paste any raw JWT or Bearer authorization token into the input textarea, or click 'Load Sample Token'.
  2. 2Examine the decoded Header (algorithm & type) and Payload (user claims, roles, tenant ID).
  3. 3Review the live expiration badge showing whether the token is currently active or expired, along with exact time elapsed.
  4. 4Copy formatted JSON payloads or signatures with a single click.

2Key Features

  • ✓100% Client-Side Privacy: Tokens never touch any server or external API
  • ✓Live expiration status badge with relative time calculation (e.g. 'Expires in 4h' or 'Expired 2h ago')
  • ✓Structured claims inspection: exp, iat, nbf, sub, iss, and custom scopes
  • ✓Instant one-click JSON copy with formatting preservation
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Client-Side Privacy Guarantee

Zero network transmission. Sensitive production and staging tokens stay strictly in local memory. SHOFIDEV_TOOLS does not transmit, store, or log any of your files, text, or tokens on external servers.

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