node-zugferd

A Node.js library for creating ZUGFeRD/Factur-X compliant documents. Generating XML and embedding it into PDF/A files, enabling seamless e-invoicing and digital document compliance.

@e-invoice-eu/core

Generate e-invoices (E-Rechnung in German) conforming to EN16931 (Factur-X/ZUGFeRD, UBL, CII, XRechnung aka X-Rechnung) from LibreOffice Calc/Excel data or JSON.

@rechnungs-api/client

This is the official JavaScript and TypeScript client for [RechnungsAPI](https://www.rechnungs-api.de), a powerful API for generating German invoices, including e-invoices with ZUGFeRD and XRechnung. The API also supports automated double-entry bookkeepin