Guides

Practical invoice guides — what facturium does, how to use it, and what generally goes on an invoice.

• What is facturium?

  facturium is a free invoice generator that runs entirely in your browser. See what it does, what it doesn't, and how your data stays private.

• How to create an invoice

  A step-by-step walkthrough of the facturium builder — business profile, client, line items, rates, and downloading the PDF.

• What's generally on an invoice?

  A generic, non-legal overview of the fields a typical invoice contains — not tax or legal advice, and not specific to any country.

• Getting paid — the payment details block

  How to fill in facturium's payment field so clients know exactly how and where to pay, and what happens after you mark an invoice sent or paid.

• Automating invoices with agents

  How browser-automation agents can drive the facturium builder today via stable testids, and what's coming next with the scripting API.