XML Validator

Validate XML syntax and structure. Get clear error messages with line numbers.

Runs entirely in your browser — nothing is uploaded or stored on any server.

About XML Validator

Updated Jan 2025

The XML Validator checks whether your XML document is well-formed and reports any syntax errors with their exact line and column positions. This is essential before processing XML in applications, APIs, or configuration parsers where malformed XML would cause runtime errors.

Frequently Asked Questions

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