Bidirectionally convert e-invoices between OASIS UBL and UN/CEFACT CII syntaxes

Convert electronic invoice XML files between OASIS UBL 2.1 (Peppol BIS Billing 3.0) and UN/CEFACT CII (ZUGFeRD / Factur-X / XRechnung) with 100% EN 16931 compliance locally in your browser.