Valid XML Checker

Validate XML documents for syntax errors and well-formedness with instant feedback

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About This Tool

The XML Validator tool allows you to check XML documents for proper syntax and well-formedness. Simply paste your XML code or upload an XML file, and the tool will instantly validate it against XML standards. It checks for common errors like unclosed tags, invalid characters, improper nesting, and more. The tool also supports validation against DTD and XSD schemas when provided. Results are displayed in a clear, easy-to-read format with detailed error messages and line numbers to help you quickly fix any issues in your XML documents.

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How to Use

Paste your XML code into the textarea or upload an XML file using the file upload button.
Select validation options: enable DTD/XSD validation if you have schema files.
Click the 'Validate XML' button to check your XML.
View the results showing whether your XML is valid, with detailed error messages if issues are found.
Use the 'Clear' button to reset the form or 'Download XML' to save validated XML.

Frequently Asked Questions

Find Quick Answers

What types of XML errors does this validator detect?

The validator detects syntax errors like unclosed tags, mismatched tags, invalid characters, improper nesting, missing root elements, and XML declaration issues. It also validates against DTD and XSD schemas when provided.

Can I validate XML against a DTD or XSD schema?

Yes, you can enable DTD or XSD validation in the options. For DTD validation, the DTD must be included in the XML document or referenced externally. For XSD validation, you'll need to provide the XSD schema file along with your XML.

Is there a file size limit for XML validation?

The tool can handle XML documents up to 5MB in size. For larger files, consider breaking them into smaller chunks or using desktop XML validation tools.

Does this tool store my XML data?

No, all validation happens client-side in your browser. Your XML data is never sent to our servers, ensuring complete privacy and security for your documents.

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