XML Schema Validator
Professional XML Validation Tool with XSD Schema Support
How to Use This Tool
What is this?
This tool validates your XML documents against XSD (XML Schema Definition) files to ensure they conform to the specified structure and data types.
How to use:
- Paste your XML: Copy and paste the XML content you want to validate into the text area below.
- Upload XSD Schema(s): Click "Choose Files" and select one or more XSD schema files from your computer.
- You can select multiple files if your schema is split across several files
- The tool will validate your XML against each uploaded schema
- Click Validate: Press the "Validate" button to check your XML.
Understanding the results:
- ✓ Valid: Your XML conforms to the schema - no issues found!
- ✗ Validation Failed: The tool will show detailed error messages including:
- Error type (Warning, Error, or Fatal Error)
- Specific error message describing what's wrong
- Line and column numbers where the issue occurs
- The schema file that detected the issue
Tip: If you have a complex schema split across multiple files (e.g., with imports or includes), upload all related XSD files together. The tool will check against each one and show you which schema your XML validates against.
Validation Results
Ready to Validate
Fill in the form above and click "Validate XML" to check your XML document against XSD schemas.