Assembly Line

Xrechnung-testsuite

Test instances for the XRechnung Standard, the German Core Invoice Usage Specification of CEN EN16931 [MIRROR of GitLab]

Xrechnung-testsuite is an open-source e-invoicing library project on GitHub under the Apache-2.0 license (permissive), with 101 stars. Its last push was 2 months ago.

Stars
101
License
Apache-2.0
Activity
Active
Latest release
v2026-08-31

Code on GitHub Website

Judgement

What it is
Developer tool
What it does
A collection of official sample UBL and CII invoices covering XRechnung business and technical cases, for testing software.
Adopt it when
You are building an XRechnung implementation and need reference test files.
Watch out
Test data only, documented in German.
Ready for
Production-ready
Built with
XML
How established
Established: started 8 years ago, latest release v2026-08-31.
What the license allows
You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Xrechnung-testsuite → runs on a microchip

How compilers were built, back to punched paper tape

Open-source alternatives to Xrechnung-testsuite

  1. 1
    Mustangproject ZUGFeRD

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

    Building block Production-ready A Java application must produce or check German or French e-invoices.

    ★ 483 Apache-2.0 XSLT Active, pushed 17 days ago
  2. 2
    ZUGFeRD horstoeko

    ZUGFeRD/XRechnung/Factur-X Library

    Building block Production-ready You maintain a PHP app already using it; new projects should start with its successor, horstoeko/invoicesuite.

    ★ 437 MIT PHP Active, pushed 32 days ago
  3. 3
    ZUGFeRD-csharp stephanstapel

    Open source C# e-invoicing library. Enables creating and reading ZUGFeRD invoices.

    Building block Production-ready Only for existing .NET projects that need a short bridge; new work should look elsewhere.

    ★ 395 Apache-2.0 C# Active, pushed 24 days ago
  4. 4
    Phase4 phax

    phase4 - AS4 client and server for integration into existing systems. Specific support for Peppol and CEF eDelivery built-in.

    Building block Production-ready You are building a Peppol access point or another AS4 integration in Java.

    ★ 246 Apache-2.0 Java Active, pushed 3 days ago
  5. 5
    Quba-viewer ZUGFeRD

    Quba is a viewer for electronic invoices

    Complete system Usable Someone in accounts receives XML e-invoices and needs to read and check them locally.

    ★ 206 Apache-2.0 Kotlin Active, pushed 10 days ago
  6. 6
    Python-drafthorse pretix

    Pure-python ZUGFeRD implementation

    Building block Usable A Python application must emit ZUGFeRD invoices and the developer can work from the official specification.

    ★ 182 Apache-2.0 Python Active, pushed 5 days ago
  7. 7
    ZATCA SallaApp

    An unofficial package maintained by Salla to help developers to implement ZATCA (Fatoora) QR code easily which required for e-invoicing

    Building block Usable A PHP system selling in Saudi Arabia must generate ZATCA-compliant invoices.

    ★ 168 MIT PHP Active, pushed 21 days ago
  8. 8
    Factur-X atgp

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

    Building block Usable Your PHP system already produces PDF invoices and the XML, and needs to combine them into Factur-X files.

    ★ 154 MIT PHP Active, pushed 3 months ago

Commercial e-invoicing libraries for ZUGFeRD, Factur-X, XRechnung and Peppol

  1. 1
    Pagero Pagero

    Discover e-invoicing, tax, legal and regulatory compliance solutions from Thomson Reuters, helping organisations navigate complexity with confidence.

    Integration Production-ready A company trading across several countries must send and receive structured e-invoices to meet mandates.

    77 readers a month Commercial
  2. 2
    Avalara E-Invoicing Avalara

    Comply with international real-time reporting and e‑invoicing mandates. Automate financial operations with Avalara E‑Invoicing and Live Reporting.

    Integration Production-ready A multinational must comply with e-invoicing mandates in several countries and already uses Avalara for tax.

    Commercial

Stars, license and activity come from GitHub and refresh on a rolling hourly schedule. The project's own description is quoted as written.