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XML Tools

9 free tools · 100% client-side

Format, minify, validate, and inspect XML, WSDL, and SOAP documents online with precise error reporting and a professional editor.

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XML is still everywhere — these tools make it readable

Enterprise integrations, SOAP services, RSS feeds, Maven POMs, Android layouts, invoice standards — XML remains the backbone of systems that move real money. When a 9,000-character single-line envelope arrives in a log, the XML Formatter restores indentation with comments and CDATA intact; the XML Validator pinpoints the unclosed tag a parser only vaguely complained about; the XML Viewer turns deep nesting into an explorable outline; and XML Minify strips the whitespace back out for transmission.

Specialized variants understand the dialects: the WSDL Formatter and SOAP Formatter handle the namespace-heavy service documents that generic formatters mangle, and the XML Parser shows the document as structured data with attributes preserved as @-keys. All parsing uses a real XML parser with exact line/column diagnostics — not regex approximations.

From XML to anywhere

Because the platform shares one data model, XML work doesn't stop at formatting: convert XML to JSON for a modern API, to YAML for configuration, to CSV for a spreadsheet, or escape it and Base64-encode it for embedding. Going the other way, JSON to XML produces element-based documents with a configurable root. If you need typed classes from an XML sample — Java, C#, TypeScript and more — the code generators accept XML input directly, or generate an XSD schema from a sample document instead — cardinality, attributes and types inferred from repetition.

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Frequently asked questions

Everything you need to know about the XML Tools.

01Why does my XML fail validation when it looks fine?

The usual suspects are invisible: an unescaped & in an attribute or text node, mismatched tag case (XML is case-sensitive), a stray character before the <?xml?> declaration, or a missing namespace prefix declaration. The validator reports the exact line and column of the first violation, which almost always lands on or just after the real problem.

02Do these tools handle namespaces, comments and CDATA?

Yes. Formatting preserves comments, CDATA sections, processing instructions, and namespace prefixes exactly; validation understands prefixed elements; and the WSDL/SOAP formatters are tuned for documents where namespaces do the heavy lifting.

03Can I convert XML with attributes to JSON without losing them?

Yes — XML to JSON maps attributes to @-prefixed keys and text content to #text, the same convention used by fast-xml-parser. The mapping is reversible enough for inspection and most integrations; the tool page documents it precisely.

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Guides for xml tools

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