FreeXmlToolkit
XSD Validation
Last Updated: November 2025 Version: 1.0.0
This tool validates your XML files against an XSD schema to check if the document follows the rules defined in the schema.
Overview
The XSD Validation interface
What Does It Check?
| Check | Description |
|---|---|
| Structure | Are elements in the right order? |
| Required Fields | Are all mandatory elements present? |
| Data Types | Are values the correct type (text, number, date)? |
| Constraints | Do values meet length, range, or pattern requirements? |
How to Use
Step 1: Load Your Files
Screenshot placeholder: File selection area
- Load XML File: Click the button or drag-and-drop your XML file
- Load XSD Schema: Click the button or drag-and-drop your schema file
- Or use “Autodetect” if your XML references its schema
Step 2: View Results
Screenshot placeholder: Validation results panel
Results appear immediately:
| Status | Meaning |
|---|---|
| Green checkmark | Your XML is valid! |
| Red X | Errors were found |
Step 3: Fix Errors
If validation fails, you’ll see a list of errors:
- Error message - What’s wrong
- Line number - Where the problem is
- Code snippet - The XML around the error
Click an error to see more details.
Features
| Feature | Description |
|---|---|
| Instant Validation | Results appear as soon as files are loaded |
| Auto-Detection | Automatically finds schema references in XML |
| Detailed Errors | Line numbers and code snippets for each error |
| Export to Excel | Save error reports for sharing |
Exporting Results
Screenshot placeholder: Export button
Click “Export to Excel” to save all validation errors to a spreadsheet. This is useful for:
- Sharing with team members
- Tracking issues over time
- Documentation
Supported Standards
| Standard | Support |
|---|---|
| XSD 1.0 | Full support |
| XSD 1.1 (with assertions) | Full support |
Tips
- Use Auto-Detection when your XML already references its schema
- Export errors to Excel when working with large documents
- Click “Clear Results” to start fresh with new files
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