Open Source Java e-Invoicing library, validator and tool (Factur-X/ZUGFeRD, UNCEFACT/CII XRechnung)

C# assembly for creating and reading ZUGFeRD invoices

ZUGFeRD/XRechnung/Factur-X Library

PHP library to manage your Factur-X / ZUGFeRD 2.0 PDF invoices files

Pure-python ZUGFeRD implementation

ZUGFeRD PHP SDK (Factur-X, XRechnung)

A library to create, read and validate ZUGFeRD compliant invoices. Available for Java and .NET

ZUgferd validator using Verapdf, discontinued because integrated into Mustangproject 2.0

Visualizer for ZUGFeRD/XRechnung/Factur-X

A simple ZUGFeRD/XRechnung/Factur-X Library for Laravel

XRechnung Implementation for Delphi

ZUGFeRD / Factur-X Implementation for Delphi

create xml invoice conforming to CIUS XRechnung or €uropean standard EN16931

pdfInvoice is an example implementation in iText 7 for the German ZUGFeRD 1.0 digital invoice standard.

Addon for the Konik library allows attaching and extracting XML content to PDFs with the help of PDFBox

pdfInvoice is an example implementation in iText 7 for the German ZUGFeRD 1.0 digital invoice standard.

ZUGFeRD/Factur-X to UBL Bridge

A reader and converter for electronic invoices that adhere to the EN16931 standard. - Anzeige von E-Rechnungen und Konvertierung in ein PDF-Dokument.

An example on how to use the Konik ZUGFeRD library for .NET

Create ZugFeRD compatible invoice pdf with data coming from Excel Sheet