EU einvoice 2026 requirements — check invoice xml free
Lints UBL/CII invoice XML against EN 16931 plus the 2026 country mandates (FR, DE, BE, PL, ES, IT) and flags retired schema versions. Runs entirely in your browser — nothing is uploaded.
Free here: Lint the invoice XML you have open - every EN 16931 core field plus the country mandate rules its CustomizationID selects, reported with line numbers.. In the editor: Scan every invoice XML in the workspace in one pass and export the findings as JSON, CSV or SARIF you keep and run in CI. — that part asks for a licence key.
Same engine as the VS Code extension, byte for byte.