This free online tool helps format and validate XML data. Paste your XML string to check syntax and beautify the output.
Example XML for Testing:
Common XML Syntax Errors:
- Unclosed Tags: Every opening tag must have a corresponding closing tag
- Case Sensitivity: Opening and closing tags must match exactly, including capitalization
- Proper Nesting: Tags must be properly nested and not overlap
- Special Characters: Use CDATA sections or entity references for special characters
- Root Element: An XML document must have exactly one top-level element
- Attribute Quotes: All attribute values must be enclosed in quotes
Tip: Copy the example XML above to test the formatter, then try with your own data.
Note: This tool validates standard XML 1.0. Results are approximate.