InvoiceXML

UBL is the international XML standard for invoices and business documents, used across Peppol networks in Europe, Australia, Singapore, and beyond. Most validators are technical CLI tools or enterprise integrations with a steep learning curve. GetUBL is the simple alternative: drop in a UBL XML file to validate it with plain-language errors, or generate a compliant invoice from a clean form. No signup, no friction. Just the format, made approachable for anyone working in cross-border B2B.

ZUGFeRD is Germany's hybrid PDF/XML invoice standard, increasingly required for B2B and public-sector invoicing. Existing tooling is either buried in enterprise compliance suites or scattered across open-source libraries built for developers. GetZugferd is the simple alternative: drop in a file to validate it instantly with plain-language errors, or generate a compliant invoice from a clean form. No signup, no hassle, no enterprise contract. Just the format, made approachable.

Factur-X is France's hybrid PDF/XML invoice format, central to the upcoming French B2B e-invoicing mandate. Most existing tools are either heavyweight French compliance platforms or developer-only libraries with no UI. GetFacturX is the simple consumer alternative: drop in a file to validate it with plain-language errors, or generate a compliant Factur-X invoice from a clean form. No signup, no API key. Just the format, made approachable for accountants, freelancers, and small businesses.