Validate XML Syntax & Structure Instantly (Well-Formed & Schema)
Validate XML syntax and structure with detailed error reporting. Check well-formedness, view element statistics, and debug XML issues. Free and runs entirely in your browser.
How to Use XML Validator
How to Use XML Validator
Step 1: Enter Your XML
Paste or type your XML content into the editor. The tool validates in real-time as you type.
Step 2: View Validation Results
The validator checks for:
- Well-formedness - Proper XML structure
- Tag matching - Opening and closing tags match
- Attribute syntax - Valid attribute formatting
- Character encoding - Proper XML prolog
Step 3: Review Statistics
For valid XML, see detailed statistics:
- Elements - Total number of XML elements
- Attributes - Total attributes across all elements
- Text Nodes - Content-containing nodes
- Comments - XML comment count
- Max Depth - Deepest nesting level
- XML Prolog - Version and encoding info
Error Reporting
When validation fails, you get:
- Clear error message explaining the issue
- Line number where the error occurred
- Column position for precise location
Use Cases
- Validate XML configuration files
- Debug RSS/Atom feed issues
- Check SOAP message structure
- Verify SVG markup
- Test XML API responses
Frequently Asked Questions
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