Related Developer Tools

XML Minifier

Compress XML by removing unnecessary whitespace.

Minifier

XML Converter

Convert XML data to JSON, YAML, or CSV formats.

Converter

XML Formatter

Beautify and format your XML code for readability.

Formatter

About XML Validator

XML Validator is an essential tool for verifying the structural correctness of your XML documents. Ensure your XML code adheres to standard syntax rules, preventing parsing errors and compatibility issues. Paste your XML, and the validator will instantly report any errors found.

Why Use XML Validator?

  • Ensure your XML documents are correctly structured before processing.
  • Prevent runtime errors caused by malformed XML.
  • Debug XML files quickly by pinpointing syntax errors.
  • Verify XML generated by applications or received from external sources.
  • Maintain data integrity in XML-based data exchange.

How To Use

  1. Paste your XML code into the input editor.
  2. Alternatively, click 'Upload' to load an XML file.
  3. Click the 'Validate XML' button.
  4. The tool will analyze the XML and display the validation results.
  5. If errors are found, they will be listed with details.
  6. If the XML is valid, a success message will be shown.

Features

  • Checks XML syntax for well-formedness rules
  • Identifies errors like mismatched tags, incorrect nesting, and invalid characters
  • Provides clear error messages indicating the location and nature of the problem
  • Supports direct pasting or uploading of XML files
  • Simple interface for quick and easy validation
  • Helps ensure interoperability and correct processing by XML parsers

Pro Tips

  • Validate frequently during development to catch errors early.
  • Use the error messages to navigate directly to the problematic lines in your code.
  • Ensure your XML declaration (<?xml ... ?>) is correct if included.
  • Remember that this tool checks for well-formedness; schema validation might require a different tool if needed.
  • Bookmark this page for quick access to XML validation.

Frequently Asked Questions

What does an XML Validator do?

An XML Validator checks if an XML document conforms to the basic syntax rules defined by the XML specification. It ensures the document is 'well-formed', meaning tags are correctly nested, attributes are properly quoted, and special characters are handled correctly.

What's the difference between well-formed and valid XML?

A 'well-formed' XML document follows the basic XML syntax rules. A 'valid' XML document is not only well-formed but also conforms to a specific structure defined by a DTD (Document Type Definition) or an XML Schema (XSD). This tool primarily checks for well-formedness.

Why do I need to validate my XML?

Malformed XML can cause applications or systems that process it to fail or produce incorrect results. Validation ensures your XML data can be reliably parsed and used by other systems.

What kind of errors does this tool find?

It typically finds errors like unclosed tags, incorrectly nested elements, invalid characters within tags or content, improperly formatted attributes, and issues with the XML declaration.

Can this tool validate against an XML Schema (XSD) or DTD?

This specific tool primarily focuses on checking if the XML is well-formed according to general XML syntax rules. It may not support validation against a specific XSD or DTD unless explicitly stated as a feature.