UBL Online Validator

The UBL Online Validator is a focused, web-based checker for electronic documents built on the Universal Business Language standard. It accepts a UBL XML payload or file and verifies structural conformance against UBL schemas, as well as optional business-rule constraints. This enables teams to identify errors before transmission and to ensure interoperability with trading partners. Conceptually, validation consists of parsing the XML, loading the appropriate XSDs, and applying rule checks at the document level. The tool returns a clear validity result and a structured list of issues with exact locations, severity, and guidance for remediation. Advanced users can test multiple schema versions and apply partner-specific presets to simulate real-world scenarios and compare results across versions. Outputs are designed for both human review and automated pipelines, with options to export in JSON or CSV formats for audit trails. The tool is ideal for developers integrating UBL feeds, procurement teams validating supplier submissions, and auditors validating data integrity in EDI-like exchanges.