Commerce OS / Free tools
Free tools

Free tools for Indian online sellers

Platform cost, GST, GSTIN, cash on delivery and profit, worked out in seconds. No sign-up.

BillingFree GST billing softwareGST invoices, quotations, purchases, payments and GSTR-1 summaries. Works on phone and computer.Open → PlatformEcommerce platform cost calculatorMonthly cost of Shopify, WooCommerce and D2 Commerce OS at your order volume.Open → GSTGST calculatorAdd or remove GST at any rate and see the CGST + SGST or IGST split.Open → GSTGSTIN checkerCheck a GST number's format and check digit, and see its state, PAN and taxpayer type.Open → CODCOD and RTO cost calculatorMonthly cost of COD fees and returned parcels, and cash waiting with couriers.Open → ProfitD2C profit calculatorReal profit per order after GST, shipping, payment fees, returns and ad cost.Open → StoreFree online storeA full store with UPI and COD checkout, delivery and GST invoices. Free up to 100 orders a month.See how →

These tools give estimates for general information only and are not tax, legal, accounting or financial advice. Please consult your chartered accountant (CA) or tax adviser before relying on any result. D2 Commerce OS and Mirav Labs accept no liability for any loss or consequence arising from their use.

Questions

About the free tools.

Are these tools really free?

Yes. All of them are free to use with no sign-up. The GST billing software has an optional free account if you want your bills saved online and available on other devices.

Is my data sent anywhere?

The calculators and the GSTIN checker run in your browser and don't send what you type anywhere. The GST billing software keeps data on your device unless you create an account.

Who makes these tools?

D2 Commerce OS, the ecommerce platform for Indian brands. The same calculations run inside the platform on every order.

Talk to us

Your store, set up free. Start with your number.

Start free.
We set it up.

Leave your number and we'll take it from there — your store, your catalogue, your delivery setup, done by our team.

  • We set up your store and move your catalogue — no charge
  • Free forever up to 100 orders a month, then ₹6–₹10 per order beyond 100
  • Want to see it first? A walkthrough on your own products
  • No plugins to buy, no developer, no lock-in
Free setupNo card needed

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  2. 2A few details optional

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