Mono Invoice Open the generator

Invoice generator with no sign-up.

If an invoice needs to go out today, account creation is friction. Mono Invoice. lets you fill out the invoice, preview it live, and download a PDF — without signing up, confirming an email, or learning a dashboard.

Why no account is the point

Most invoice tools treat registration as the start of the workflow, because the invoice is a doorway into a bigger product. Mono Invoice. is just the invoice. You open the page, type, and download. The whole thing takes about a minute.

Private by default

Because there's no account, there's nothing to store. Your invoice data stays in your browser — it's auto-saved locally on your device so you can come back to it, and it's never uploaded anywhere.

Everything you actually need

Three clean templates, your logo and accent color, line items with automatic totals, tax and discount support, due dates, payment details, and 37 currencies. Nothing you don't.

Create your invoice — free
No sign-up. Your data stays in your browser.