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

ZUGFeRD/XRechnung/Factur-X Library

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

🇪🇺 💶 Generate e-invoices (E-Rechnung in German) conforming to EN16931 (Factur-X/ZUGFeRD, UBL, CII, XRechnung aka X-Rechnung) from LibreOffice Calc/Excel data or JSON.

Pure-python ZUGFeRD implementation

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

ZUGFeRD PHP SDK (Factur-X, XRechnung)

A desktop application, that creates and validates ZUGFeRD invoices.

A Node.js library for creating ZUGFeRD/Factur-X compliant documents. Generating XML and embedding it into PDF/A files, enabling seamless e-invoicing and digital document compliance.

Simple app to design single page invoices and export XRechnung and ZUGFeRD conform files

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

Kostenlose, self-hostbare Open-Source-Rechnungssoftware für Deutschland · E-Rechnung (XRechnung/EN 16931, offiziell Schematron-validiert), GoBD, §14 UStG, Kleinunternehmer §19 · per Claude Code (MCP) in natürlicher Sprache steuerbar · AGPL-3.0

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

Monorepo including CLI, jasy-pdf and ZUGFeRD/XRechnung engine

Visualizer for ZUGFeRD/XRechnung/Factur-X

Parser plugin for Paperless-ngx to store and read E-Rechnungen (both XRechnung and ZUGFeRD).

ZUgferd validator using Verapdf, discontinued because integrated into Mustangproject 2.0

XRechnung/ZUGFeRD/Peppol BIS Billing Implementation for Delphi and FreePascal

Factur-X/ZUGFeRD parsing and generation library for Python

ZUGFeRD / Factur-X Implementation for Delphi