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Home / Developer Tools / XML Validator

XML Validator

Validate XML syntax and detect unclosed tags, illegal characters, or malformed structures with exact line numbers.

How to Use XML Validator

Paste your XML markup or upload an XML document.
Our validator runs instant DOM parsing in your browser.
Inspect the green "Valid XML" badge or review the error banner showing the exact line and column number.
Fix highlighted errors directly in the editor.

Key Features & Advantages

Pinpoint error location with exact line and column indicator
Browser-native DOMParser for 100% compliance
Fast real-time validation as you type
Detailed error explanations

Frequently Asked Questions

Common errors include unclosed tags, mismatched case (`<Item>` vs `</item>`), unescaped ampersands (`&`), and missing root parent elements.

How would you rate XML Validator?

4.9 / 5.0 • 0 user ratings

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