纯本地私密运行的 XRechnung Viewer, Validator & PDF Renderer

Upload XRechnung 3.0 XML (CII or UBL) to get a human-readable invoice, validate all BR-DE-* business rules, check Leitweg-ID, view VAT breakdown, detect errors, and render a print-ready PDF. 100% 浏览器本地处理，无需注册账号，零服务器上传。