Every Indian GST invoice generator forces signup. I built one that doesn't.

I needed to send one GST invoice last week. Took me 25 minutes.

Vyapar wanted me to sign up. Zoho Books wanted me to sign up. Tally wanted me to install desktop software and walked me through a 3-screen wizard. The Indian government's e-invoice portal needed an aadhaar OTP and a separate "tax payer login."

I just needed: enter buyer GSTIN + line items → PDF.

So I built it. Single page, runs in your browser, generates a compliant tax invoice in 60 seconds. Free, open source, no signup, no analytics on your form data.

Live demo: if you need an obscure category.

How the PDF gets generated (no server)

The PDF is built entirely client-side using

This is part of (Indian property total-cost calculator), cron.protodex.io (cron expression explainer with systemd timer output).