I needed an invoice generator to quickly produce some random test invoices while building Manano, as part of a feature letting tradesmen track receipts by sending photos to our WhatsApp number.

I tried a few invoice generators that showed up in Google results, but all of them were oddly slow, wouldn't remember details without signing up, and sometimes produced odd looking outputs.

Eventually I realized it would probably be straight forward enough to whip one up myself, and so here is my simple invoice generator!