Validator · XPath Finder · XPath Tester · String Search
All your XML needs in one place. Validate XML syntax, run XPath 1.0 queries to find nodes, test and validate XPath expressions, or search XML content by keyword. Everything runs in your browser — fast, private, free.
✓ XML VALIDATORValidates well-formedness · Shows structure tree
XML Input
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XML Tree Structure
Tree view appears after validation...
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🔍 XPATH FINDERRun XPath 1.0 queries against your XML
XML Document
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XPath Expression
Quick examples:
Select All ElementsAll <book> nodesAll id attributesbook where price>30Count <book>All title textLast <book>First <book>Root element nametitle contains "XML"
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⚙ XPATH 1.0 EXPRESSION VALIDATORValidate XPath syntax without needing an XML document
XPath Expression to Validate
Batch Validate (one expression per line)
Expression Analysis
Batch Results
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🔎 XML STRING SEARCHSearch text content, attribute values and tag names
XML Document
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Search
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Frequently Asked Questions
What does XML Validator check?
It checks XML well-formedness — all tags are properly opened and closed, attributes are quoted, special characters are escaped, and the XML has exactly one root element.
What version of XPath is supported?
ByteKit uses the browser's native XPath 1.0 engine via document.evaluate(). This supports all standard XPath 1.0 axes, functions, predicates and operators.
What is the difference between XPath Finder and XPath Validator?
XPath Finder runs an XPath expression against a real XML document and shows the matching nodes. XPath Validator checks whether an XPath expression is syntactically correct — you don't need an XML document for this.
Can I search XML using regular expressions?
Yes — enable "Regex mode" in the String Search tab and enter a regular expression. The tool will highlight all matching content in text nodes, attribute values and tag names.
Is my XML data sent to a server?
No — all XML parsing, XPath evaluation and string searching uses browser-native APIs (DOMParser, document.evaluate). Your XML never leaves your device.