A free validator, offered as-is, with no warranty and no liability. Read the two paragraphs about accuracy — they are the ones that matter.
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It checks an electronic invoice against published validation rules — EN 16931, Peppol BIS Billing 3.0 and XRechnung — and reports which rules it breaks, with an explanation and a suggested fix. It does not send, receive, store, archive or transmit invoices, and it is not a Peppol Access Point or a French PDP.
The rule checks themselves come from the official artefacts published by CEN/CEF, OpenPeppol and KoSIT, run unmodified. The service passes all 1,142 assertions in CEN's own test suite.
The explanations and suggested fixes are ours, and they are guidance, not law. Each
finding carries a confidence field: curated means a person wrote it,
template means it was generated from the rule's own structure. A clean result means the
document passed the rules this service ran — it is not a guarantee that a tax authority, an
access point or a customer will accept it. Nothing here is legal, tax or accounting advice.
You remain responsible for the invoices you issue.
The service is provided "as is", without warranty of any kind, express or implied, including fitness for a particular purpose. To the fullest extent permitted by law, we are not liable for any loss arising from use of the service or from reliance on its output — including rejected invoices, penalties or lost business. Nothing in these terms excludes liability that cannot be excluded by law.
Requests are rate limited per IP address. Do not attempt to circumvent the limits, disrupt the service, or use it to attack anything. Automated use within the published limits is welcome — that is what the API is for.
There is no uptime commitment. The service may change or stop at any time.
Validation uses artefacts published by CEN/CEF (EUPL-1.2), OpenPeppol and KoSIT (Apache-2.0), run unmodified and credited in the footer. Their licences and rights are unaffected by these terms.
Slovenian law applies, and the courts of Slovenia have jurisdiction, except where mandatory consumer rules give you the protection of your own country.