In Spain, electronic invoices for public administration use an XML format called Facturae. The official viewer requires installing Java. I built FacturaView, a free web tool that lets you upload your XML and instantly see all the invoice data — sender, receiver, line items, taxes, totals, payment info.

Everything is processed locally in your browser. Files never leave your device. You can export to PDF or Excel.

Supports all Facturae versions (3.2, 3.2.1, 3.2.2), batch invoices, and digital signature validation.

Built with Vanilla JS + Vite on the frontend, Python/FastAPI for optional signature validation. 242 tests.