XML Validator
Validate XML syntax and catch malformed tags fast.
What this tool does
Validate XML input and detect malformed structure before using XML in integration workflows, feeds, or legacy system imports.
Tool interface
Input
Output
Example input
<users><user id="1"><name>Ana</name></user></users>
Example output
Valid XML.
Step-by-step instructions
- Paste XML content into the input area.
- Click Transform to validate XML syntax.
- Review whether the document is valid before downstream processing.
Common use cases
- Catching malformed input before import or deployment.
- Checking payload structure during debugging and QA.
- Preventing format-related errors in downstream tools.
Prevents integration failures caused by malformed XML tags, nesting issues, or invalid structure.
Common mistakes to avoid
- Mismatching opening and closing tags.
- Forgetting to quote attribute values.
- Assuming XML validation includes XSD schema checks.
Frequently Asked Questions
Does XML Validator check XSD schemas?
No. It validates XML syntax and structure only.
Can XML Validator detect malformed closing tags?
Yes. Invalid tag structure is reported as a parse error.
Can I validate API/XML feed responses?
Yes. Paste raw XML from feeds or responses to validate quickly.
What input format does XML Validator expect?
Use the format shown in the example input on this page.
What does XML Validator output?
It returns transformed output that you can copy directly from the result panel.
Why might XML Validator return an error?
A common issue is: Mismatching opening and closing tags.
Does XML Validator run in the browser?
Yes. Transformations are designed for in-browser usage so you can test and iterate quickly.
Can I copy or download results from XML Validator?
Yes. You can copy transformed output directly from the tool.
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