Chrome extension

GSTIN.cloud Chrome extension

A free Chrome extension that finds GST numbers on any page — invoices, supplier portals, emails, PDFs — validates them offline and looks up the business name, status, address, filing history and health score from GSTIN.cloud.

Live Visit Chrome Web Store
Problem
Accounts and procurement teams have to confirm a supplier’s GSTIN before paying an invoice or claiming input tax credit, usually by copying it into a separate portal.
My role
Built and published the extension — page scanning, checksum validation, lookups and Chrome Web Store release.
Model
Free, no sign-up or API key; daily live lookups shared with GSTIN.cloud.

What it does

  • Highlights every GSTIN on a page
  • Offline checksum validation
  • One-click business verification
  • Search GSTINs by PAN or business name
  • HSN/SAC finder and GST due dates
  • Privacy-first: scanning stays in the browser

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