Is the XML Formatter free to use?

Yes, completely free. There is no signup, no rate limit, and no paid tier. The tool runs entirely in your browser.

Does my XML get uploaded to a server?

No. All processing happens in your browser using the built-in DOMParser and XMLSerializer APIs. Your data never leaves your device.

What indentation options are supported?

The formatter supports 2-space and 4-space indentation. Choose the style that matches your project's coding standards.

Can this tool validate XML?

Yes. Click the Validate button to check your XML for well-formedness errors. The status bar will show the exact error message if the XML is invalid.

What types of XML does the formatter support?

The formatter handles any well-formed XML, including documents with processing instructions, comments, CDATA sections, namespaces, and XML declarations.

Can I format large XML files?

Yes. Since processing is done in-browser it can handle large documents, though very large files (10MB+) may be slow depending on your device.

Free XML Tool

Format & Validate XML
Instantly

Paste your XML and beautify, minify, or validate it in one click. No server upload — everything runs in your browser. Works offline.

✨

Instant Formatting

Beautify messy or minified XML with configurable indentation — 2 or 4 spaces. Results appear instantly.

🔒

100% Private

Your XML never leaves your browser. All processing is done locally using built-in browser APIs.

✅

Built-in Validation

Detect syntax errors and malformed XML in real time, with clear error messages pointing to the problem.

Indent:

Input XML

0 chars

Output

Formatted output will appear here…

0 chars

Frequently Asked Questions

Everything you need to know about XML Formatter.