zugferd topic
mustangproject
Open Source Java e-Invoicing library, validator and tool (Factur-X/ZUGFeRD, UNCEFACT/CII XRechnung)
ZUGFeRD-csharp
C# assembly for creating and reading ZUGFeRD invoices
ZUV
ZUgferd validator using Verapdf
python-drafthorse
Pure-python ZUGFeRD implementation
zugferd
ZUGFeRD/XRechnung/Factur-X Library
factur-x
PHP library to manage your Factur-X / ZUGFeRD 2.0 PDF invoices files
konik
A library to create, read and validate ZUGFeRD compliant invoices. Available for Java and .NET
zugferd-php
ZUGFeRD PHP SDK (Factur-X, XRechnung)
XRechnung-for-Delphi
XRechnung Implementation for Delphi