
Altova XMLSpy
XML Copy Editor
XML ValidatorBuddy
Stylus Studio
WMHelp XMLPad
Liquid Studio
ExamXML
Oxygen XML Editor provides a comprehensive suite of XML authoring and development tools.

aiDoks.eu
InvoiceIn
Mustang Project
E-Rechnungs-Studio.de
E-Invoice.Space
Invoice-Converter
GetInvoice
REST API for German e-invoices: generate XRechnung (UBL/CII) and ZUGFeRD from JSON, and validate XML and PDF invoices against the official KoSIT rule set, with a plain-language explanation for every business-rule finding. Validation is free.
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Website, pricing, platforms and company facts side by side.
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In their own words, as submitted to SaaSHub.


No description of Oxygen XML Editor yet.
NormAPI generates XRechnung (UBL and CII) and ZUGFeRD invoices from JSON and validates XML and PDF invoices against the official KoSIT rule set, as a REST API and as a free browser validator without sign-up. Generated invoices are validated before they are returned, every response names the...
What each product offers, as listed by its team.


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The XMLSpy XML Editor is a powerful tool for editing XML and related technologies. It is the only XML Editor with patented SmartFix validation, enterprise-grade editors, converters, debuggers, and code generators.
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Create, edit and view e-invoices online for free. Convert PDF to e-invoice, transform invoice XML to PDF, and generate UBL 2.1 with OCR scanning, EU VAT validation, and PEPPOL BIS 3.0 compliance.
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XML Copy Editor is a fast, free, validating XML editor.
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POST any e-invoice you receive. Get canonical EN 16931 JSON, validation with fix hints, PDF, CSV and DATEV back. Nothing stored.
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Makes working with XML as fast and convenient as never before.
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Mustangproject is a open source library and command line tool for FacturX/ZUGFeRD, a PDF-based format for electronic invoices.
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