Small things a shop needs, free and without an account. They run in your browser, on the same billing engine as the software.
Work out CGST, SGST and IGST on any amount, at any slab, inclusive or exclusive of tax.
Check whether a GSTIN is properly formed — state code, PAN and the official check digit.
Somebody searching for a GST calculator is not searching for billing software. But they are running a shop, and in ten seconds we can solve the thing they came for without asking anything of them. If the software is useful later, they will know where it is.
Every tool here runs the arithmetic out of Aned Book itself rather than a copy written for the website — so what a tool tells you is what the invoice would say.
The calculator on this page runs the billing engine out of the software itself, not a copy of it — so what it tells you here is what the software would put on the invoice.