
Batchloupe
Offline batch inspection for EN 16931 e-invoices. Checks hundreds of XRechnung, ZUGFeRD, Factur-X and Peppol invoices at once on your own computer and keeps format faults, missing VAT particulars and PDF-versus-XML differences apart.

Highlights
- Batch checking that never uploads invoices
- Format, VAT and PDF-versus-XML verdicts kept apart
- 106 checks across EN 16931, Peppol, XRechnung and Factur-X
- Supplier summary and PDF audit report
Batchloupe opens a folder, a set of files or a zip of UBL, CII and hybrid PDF invoices and checks them in the browser. Each invoice gets three separate verdicts: would a validator reject the format, are the invoice particulars a buyer needs for input VAT present, and does the visible PDF match the XML it carries.
It finds probable duplicates, summarises problems by supplier with a note to send them, and exports a PDF audit report, CSV and JSON. The 106 checks are written in our own words from the published rule ids; it is not the official validator. Invoices are never uploaded.
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