XML Validator & Formatter
Validate XML structure and format it with proper indentation.
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Frequently Asked Questions
Common questions for the selected tool, explained clearly so you can move faster.
What XML problems can this tool detect?+
This validator checks for mismatched tags, invalid characters, missing closing tags, and general XML syntax errors.
Why does XML-to-JSON sometimes show no output?+
The converter first validates XML syntax via DOMParser. If your XML is malformed, namespaced, or missing a root element, it shows an error instead. For large responses, use the vertical scroll bars in input/output panes and ensure the XML is well-formed.