Playground
Build an invoice, get XML. Right in the browser.
The playground runs the same generation engine as the API — client-side, no account, no key. It produces a real XRechnung 3.0 (UBL) document with structural EN 16931 checks; the production API adds full KoSIT Schematron validation, the authoritative tier.
output.xml
// Fill the form and press Generate.
// You get a real UBL 2.1 / XRechnung 3.0 document.- Structure
- XSD in the API
- KoSIT in the API
Structural EN 16931 checks
Generate a document to see the validation report.
Runs entirely in your browser — nothing you type leaves this page. The API adds full KoSIT Schematron validation.
Get your API key→