Receiving mandatory for all businesses: 1 September 2026 · Issuing for small businesses: 1 September 2027
Check your e-invoice's EN 16931 compliance
Drop a Factur-X (PDF), UBL, or CII (XML) file for a detailed compliance report, in French and English.
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Accepted formats: PDF (Factur-X), XML (UBL 2.1 or CII) — 15MB maximum
Your files are validated in memory on servers located in Paris (EU), never stored. Anonymous, cookie-free visit counting only. Learn more
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Drop your file
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Report in seconds: every error explained in plain English, with the fix
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Fix it, retest, then send it through your Plateforme Agréée
What we check
- PDF/A-3 structure and embedded XML (structural check)
- XSD validity (UBL 2.1 / CII)
- EN 16931 business rules (Schematron), with 30 rules explained in plain English
Who it's for: accountants (checking client invoices), small businesses (testing before sending), developers (validating an integration).