Fill in your details, the buyer, and the lines, and this builds a proper GST invoice you can print or save as a PDF. Nothing is uploaded anywhere — the whole thing runs in your browser, which is why it needs no account.
Rule 46 lists what a tax invoice has to carry. In practice, the ones people leave off are:
This generator asks for all of them and works out the tax split for you from the two state codes.
A browser tool is genuinely fine for an occasional invoice. It stops being fine at the point where you need the invoice numbers to be an unbroken series, need to know who has not paid, or need to file a return from your own sales data.
Those are record-keeping problems, not document problems, and no generator solves them because it forgets everything the moment you close the tab. That is where an actual billing account earns its place — and there is a free one at the bottom of this page.
The serial number has to be consecutive, unique within the financial year, and no longer than sixteen characters. Letters, numbers, slashes and hyphens are allowed; anything else is not.
A prefix that names the year — INV/26-27/0001 — is the common pattern, because it restarts cleanly every April without ever repeating a number. What you must not do is leave gaps: a missing number in a series is the first thing an officer asks about, and "we cancelled that one" only works if the cancelled invoice still exists in your records.
Writing the total in words is a habit that predates GST and survives because it makes tampering obvious. This fills it in automatically in the Indian system — lakh and crore, not millions — which is the part people most often get wrong when typing it by hand.
Yes, with no account and no limit. It runs entirely in your browser and nothing you type is sent to a server.
The document itself is compliant, but you will need to keep your own record of the numbers to file a return. A billing account does that part for you.
Yes. If you are not registered, leave the GSTIN blank and do not charge GST — an unregistered business must not collect it.
Print the invoice and choose "Save as PDF" as the destination. Every modern browser offers it, and the layout is built for A4.