Free Online XML Validator & Formatter

Need to check your XML files for syntax errors? Our free XML Validator instantly checks for well-formedness and potential issues. It also works as an XML Beautifier (Prettifier) to make ugly, minified XML code readable again.

What is XML?

XML (eXtensible Markup Language) is a markup language similar to HTML but designed to store and transport data. It's self-descriptive and valid XML must follow strict syntax rules, such as properly nested tags and a single root element.

Features

Validate: Checks for syntax errors like unclosed tags or improper nesting.
Beautify: Indents your code to make it human-readable.
Minify: Removes whitespace to reduce file size for transport.

Use XML Validator in your browser

Validate, format, and minify your XML code instantly in your browser. Ensure your XML is well-formed and schema-compliant with our professional-grade developer utility. It runs directly in your browser, so you can start straight away without creating an account or installing anything.

Simple to start

Open the workspace above, choose your options, and get the result when you need it.

Made for any screen

The controls are designed to stay usable on phones, tablets, and desktops.