How do I check if my XML is valid?

The validator parses your XML in real time and flags syntax errors, such as unclosed tags or malformed attributes, as you type.

Can I minify XML to reduce its size?

Yes, the minify option strips unnecessary whitespace and line breaks, producing a compact single-line XML string.

Can I adjust the indentation level when formatting?

Yes, choose your preferred indent size (such as 2 or 4 spaces) to match your project’s coding style.

Is this XML formatter free to use?

Yes, completely free with no registration required and no limit on how much XML you can format or validate.

Does this tool send my XML data to a server?

No, all parsing, formatting, and validation happen entirely client-side in your browser — nothing is transmitted anywhere.

XML Formatter & Validator

Indent:

Raw XML Input

Formatted Output

Free Online XML Formatter & Validator

Format, beautify, and validate XML documents in seconds. Our free online XML formatter properly indents nested tags, detects syntax errors in real time, and lets you minify XML to reduce file size. 100% private and processed in your browser.

Key Features

Auto-indent with 2 or 4 spaces for easy readability.
Real-time syntax validation with detailed error messages.
Minify XML by stripping whitespace and extra lines.
Instant copy and file download options.

Frequently Asked Questions

Find answers to common questions about this tool, data privacy, and usage.

Paste your XML into the input box and the tool automatically formats it with proper indentation, making nested elements easy to read.

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