Free online XML tools for developers, integration engineers, and data professionals. Format, validate, convert, generate code from, and transform XML — all client-side, nothing uploaded.
All tools
Pretty-print, minify, and well-formedness-check XML with exact line/column error locations.
ConversionConvert between XML and JSON in either direction, with attributes, arrays, and mixed content handled correctly.
ValidationGenerate an XSD schema from sample XML, or a sample XML document from an XSD schema.
ConversionFlatten XML into rows and columns, or build XML from tabular CSV data, in either direction.
Code GenerationGenerate TypeScript interfaces, Java POJOs, or C# classes from a sample XML document.
TransformationRun an XSLT transformation against your XML and see raw output or a rendered HTML preview.
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Every tool on this page runs entirely in your browser — parsing, converting, and generating happen locally using your browser's own XML engine, and nothing you paste or upload is sent to a server. Each tool page includes its own documentation, examples, common use cases, limitations, and FAQ, since the right approach (and the right caveats) differ depending on whether you're validating a document, converting formats, generating code, or running a transformation.