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100% offline — your files never leave your computer.
All parsing and XSD validation runs locally in your browser using libxml2 (WebAssembly).
No uploads, no servers, no telemetry.
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XML file to validate
Drop a single .xml file here, or click to browse.
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XSD schema file(s)
Drop one or more .xsd files (or a .zip of a schema package) here, or click to browse.
Supports multi-file schemas with <xs:import> / <xs:include>.
XML document
Loaded schema files
Loading validation engine…