Online XML Validator

Or enter XML manually below

Cleared

Enter XML data and click "Validate" to check for errors.

Input & Output for XML Validator

What input is accepted by this tool?

The input can be any XML data you want to validate. This includes elements, attributes, text content, CDATA sections, and comments. For example,

<tool>
    <title>Online XML Validator</title>
    <description>Validate and verify XML data</description>
    <pricing>free</pricing>
</tool>

What'll be the output of this tool?

The output will be a validation status indicating whether your XML is valid or invalid. If valid, you'll see a success message. If invalid, you'll see an error message with details about what went wrong, including the line number and the problematic code snippet.

What inputs are considered invalid?

The following inputs will produce a validation error:

  • Unclosed tags: Every opening tag must have a corresponding closing tag, such as <item>...</item>.
  • Mismatched tags: Opening and closing tags must match exactly, including case sensitivity.
  • Invalid characters: Unescaped special characters like <, >, or & in text content.
  • Missing root element: XML must have exactly one root element wrapping all content.
  • Invalid attribute syntax: Attributes must have quoted values, such as id="123" not id=123.

Can I click to locate the error in my XML?

Yes! When an error is found, you'll see the exact line and column number where the problem occurred. Clicking the "click to locate" link will jump to the error position in the editor, making it easy to fix the issue.