Financewolf
Invoice JSON playground
Start with an invoice or credit note. Generate UBL and check its exact bytes against the selected ruleset.
JSON is sent to Financewolf when you generate. Anonymous JSON, XML and results are processed transiently; the editor uses no browser storage. Loading or editing a file does not upload it.
Use decimal strings for amounts. Financewolf applies the versioned input contract and PHIVE validation; it does not silently repair invoices or send them over Peppol.