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.

ZUGFeRD/Factur-X to UBL Bridge

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.

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