XML Validator
Validate XML syntax online for free and see a clear error message when it is invalid.
How to use
- 1Paste your XML into the editor.
- 2Click Validate XML.
- 3Fix any errors shown.
Features
- Clear valid/invalid result
- Browser-native XML parsing
- Runs entirely in your browser
Supported formats
Privacy
Your XML is validated locally in your browser and is never sent to our server.
About this tool
The XML Validator checks whether a block of text is well-formed XML using your browser's built-in DOMParser. When it is not, the tool shows the parser's error message to help you find the problem.
Frequently asked questions
What kinds of errors does this catch?
It catches malformed XML such as unclosed tags, mismatched tags and invalid characters.
Does it validate against a schema (XSD)?
No, this tool only checks that the XML is well-formed, not that it matches a particular schema.
Is my XML sent to a server?
No, validation happens entirely in your browser.
Related tools
XML Formatter
Format and validate XML online for free with proper indentation, in your browser.
JSON Validator
Validate JSON syntax and get clear error messages with line and column numbers.
JSON Formatter
Format and beautify JSON online with proper indentation, entirely in your browser.
JSON to CSV
Convert a JSON array of objects into a CSV file online for free.