Repositories list

• mustangproject

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

  javametadatapdf+ 11

  javametadatapdfinvoicesinvoicemetadata-apizugferdublinvoice-pdfmetadata-standard+ 4

  XSLT

  •

  Apache License 2.0

  •210210 forks•404404 stars•210210 issues•1515 pull requests•Updated Apr 10, 2026Apr 10, 2026

• quba-viewer

  Public
  Quba is a viewer for electronic invoices

  electronviewerinvoices+ 8

  electronviewerinvoicesxsltelectron-appublxrechnunginvoices-pdfe-rechnungelectronic-invoices+ 1

  XSLT

  •

  Apache License 2.0

  •3636 forks•187187 stars•7676 issues•11 pull request•Updated Mar 11, 2026Mar 11, 2026

• core

  Public
  Tracking issues against the ZUGFeRD specification text and files

  11 fork•22 stars•22 issues•11 pull request•Updated Mar 9, 2026Mar 9, 2026

• ZUGFeRD.github.io

  Public
  This is the Asciidoc (Antora) based repo for the website www.zugferd.org (which is inofficial, the official website is at https://www.ferd-net.de/standards/zugf…

  Handlebars

  •66 forks•1616 stars•22 issues•00 pull requests•Updated Feb 23, 2026Feb 23, 2026

• REST-Converter

  Public
  Spring Boot Rest API to convert UBL to CII or FatturaPA and vice versa

  XSLT

  •

  European Union Public License 1.2

  •11 fork•00 stars•00 issues•00 pull requests•Updated Feb 20, 2026Feb 20, 2026

• corpus

  Public
  Collection of real, sample and test ZUGFeRD invoices, partly with artificial errors

  samplese-invoicehacktoberfest

  samplese-invoicehacktoberfest

  Apache License 2.0

  •77 forks•5252 stars•33 issues•00 pull requests•Updated Sep 3, 2025Sep 3, 2025

• mustangapi

  Public
  A dropwizard based REST API for Mustangproject, discontinued predecessor of the proprietary spring based mustangserver.com

  Java

  •

  Apache License 2.0

  •77 forks•99 stars•00 issues•00 pull requests•Updated Apr 22, 2025Apr 22, 2025

• materials

  Public archive
  Resources like syllabus or FAQ

  Creative Commons Zero v1.0 Universal

  •55 forks•00 stars•00 issues•00 pull requests•Updated Feb 14, 2025Feb 14, 2025

• einvoice-anonymizer

  Public
  A python script to remove personal data from EN16931 XML e-invoices, primarily CII

  Python

  •

  Apache License 2.0

  •11 fork•66 stars•22 issues•00 pull requests•Updated Nov 21, 2024Nov 21, 2024

• b2b

  Public archive
  Samples for german domestic B2B e-invoices, moved to corpus

  Apache License 2.0

  •00 forks•33 stars•00 issues•00 pull requests•Updated Apr 20, 2024Apr 20, 2024

• ZUV

  Public archive
  ZUgferd validator using Verapdf, discontinued because integrated into Mustangproject 2.0

  pdfvalidationxml+ 5

  pdfvalidationxmlvalidatorzugferdschematronverapdffactur-x

  XSLT

  •

  Apache License 2.0

  •77 forks•3030 stars•77 issues•22 pull requests•Updated Dec 5, 2023Dec 5, 2023

• fattural

  Public
  Factur-x As Training daTa for neURAL networks provides Factur-X/ZUGFeRD related open tools, procedures and training data for neural invoice recognition

  XSLT

  •

  Apache License 2.0

  •00 forks•00 stars•00 issues•00 pull requests•Updated May 24, 2021May 24, 2021

• ZOSOCON

  Public
  ZUGFeRD Open Source Online Conference recordings and materials

  Apache License 2.0

  •00 forks•22 stars•00 issues•00 pull requests•Updated May 1, 2021May 1, 2021

• EN16931-viewer

  Public
  Failed attempt to create an electron based viewer for e-invoices

  XSLT

  •

  Apache License 2.0

  •5353 forks•11 star•00 issues•00 pull requests•Updated Jul 21, 2019Jul 21, 2019

• ZOX

  Public
  Zugferd Over Xmpp: Proof of concept for a ZUGFeRD protocol

  Java

  •

  Apache License 2.0

  •00 forks•22 stars•22 issues•00 pull requests•Updated Dec 14, 2017Dec 14, 2017

• hibiscus

  Public
  A ZUGFeRD plugin for the Jamaica/Hibiscus home banking software

  pluginbanking

  pluginbanking

  Java

  •

  Apache License 2.0

  •00 forks•22 stars•00 issues•00 pull requests•Updated May 7, 2017May 7, 2017

• ZUGFeRD-csharp

  Public
  C# assembly for creating ZUGFeRD compatible XML descriptor files

  C#

  •

  Apache License 2.0

  •181181 forks•33 stars•00 issues•00 pull requests•Updated Apr 12, 2017Apr 12, 2017