Open Source Java e-Invoicing library, validator and tool (Factur-X/ZUGFeRD, UNCEFACT/CII XRechnung)
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Updated
Jan 17, 2026 - XSLT
Open Source Java e-Invoicing library, validator and tool (Factur-X/ZUGFeRD, UNCEFACT/CII XRechnung)
ZUGFeRD PHP SDK (Factur-X, XRechnung)
ZUgferd validator using Verapdf, discontinued because integrated into Mustangproject 2.0
E-Inovice Validator for Germany (E-Rechnung Validator)
Configuration for validating documents against the ZUGFeRD/Factur-X standard using the KoSIT validation tool
Apache Camel routes to create German ZugFERD PDF invoices from a simple inhouse XML input file
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