About the XML Validator
Unlike HTML, which web browsers attempt to render forgivingly even when malformed, XML enforces strict well-formedness rules. A single unclosed tag, mismatched element name, or unquoted attribute will cause XML parsers to abort processing immediately. This XML Validator parses your XML using the browser's native XML engine and pinpoints syntax errors.
This tool is indispensable for developers working with SAML SSO configurations, SVG files, RSS feeds, Maven POM files, and enterprise data integrations. It flags unclosed tags, illegal characters, attribute syntax mistakes, and root element issues.
To use it, paste your XML code into the editor and click 'Validate XML'. If the document is valid, a green confirmation badge is displayed. If an error is present, the tool reveals the exact parser error message along with the line number and column position of the issue.
For example, if you close a '<user>' tag with '</User>' (capitalized), the validator flags the case mismatch error and directs you to the exact line to fix it.
A common XML pitfall is having more than one root element. Every valid XML document must have exactly one top-level enclosing root tag.
Tip: Validate XML before uploading feeds or configuration files to automated CI/CD pipelines to prevent build failures.