Three tools, one toolbox
Read invoices. Understand reports.
All three run as a WordPress plugin on your own site, process the file in memory and store nothing.
(e)Invoice Viewer
One shortcode turns your WordPress page into an e-invoice reader: ZUGFeRD PDF, Factur-X, XRechnung and UBL – all 164 business terms of EN 16931. Four paid extensions add to it: Exporter, Extended Profiles, Technical Details and Visualizer.
Validation Explainer
A KoSIT report speaks in rule identifiers and XPath expressions. The Explainer turns it into plain language: every finding with its EN 16931 term, an explanation and the actual value.
eInvoice Validator
One shortcode puts the official KoSIT validator on your page: check XRechnung and ZUGFeRD files, with the authoritative report or a plain-language one.