XML Validator against XSD

This tool validates XML documents against one or more XSD schemas to enforce structural correctness and data typing. It accepts XML input and one or more XSDs via files or URLs, with optional namespace awareness. The validation context can include multiple schemas and imported includes, enabling thorough checks across complex data contracts. Under the hood, the validator parses XML, builds a schema set, resolves imports, and applies constraints defined by the XSDs, returning a detailed report of any violations. It follows W3C XML Schema 1.0/1.1 standards and supports remote schema retrieval, inline schemas, and batch validation for multiple documents. The main value lies in early error detection, precise error localization, and the ability to produce structured reports for CI pipelines, QA cycles, or data integration tasks. Use cases span API payload validation, configuration file verification, SOAP/REST message checks, and data fixture validation before loading into systems. Unique differentiators include support for multiple schemas in a single run, explicit line/column error reporting, and flexible input sources (files or URLs) that enable seamless integration into development and testing workflows.