Developer Tools

XML Formatter

A fast, client-side XML formatter and validator. Paste your messy or minified XML code to instantly beautify it with proper indentation. Validate your XML to catch syntax errors, or minify it to save space. Your data never leaves the browser, ensuring complete privacy.

Output

What is the XML Formatter?

The XML Formatter takes unformatted, minified, or messy XML and transforms it into a clean, readable structure with proper indentation and line breaks.

How to Use

  1. Paste your XML text into the input box or upload a `.xml` file.
  2. Choose your preferred indentation level (2 spaces, 4 spaces, or Tabs).
  3. Click "Format XML" to beautify the code, or "Minify" to compress it.
  4. The tool will automatically validate your code and show syntax errors if any exist.
  5. Copy the formatted output or download it as a `.xml` file.

Common Use Cases

  • Debugging SOAP API responses or RSS feeds.
  • Cleaning up minified XML configuration files (like Android manifests or Maven POMs).
  • Validating hand-written XML documents before deployment.

Key Benefits

  • Zero dependencies on servers — lightning fast and totally private.
  • Catches structural errors instantly.
  • Supports multiple indentation styles for personal preference.

Frequently Asked Questions

How does the XML validation work?

The tool uses your browser's native DOMParser to read the XML. If your XML contains syntax errors (like missing closing tags or invalid characters), the browser flags the exact location, which we display to you.

Is my XML data secure?

Yes. This tool is 100% client-side. The formatting and validation happen entirely within your web browser. No data is ever uploaded to our servers.

Can I format very large XML files?

Yes! Because the tool uses native browser APIs and doesn't rely on server uploads, you can format large XML payloads extremely quickly, limited only by your computer's RAM.

What does it mean to minify XML?

Minifying XML removes all unnecessary whitespace, line breaks, and indentation. This reduces the overall file size, saving bandwidth when transmitting XML payloads over a network.

Why is my XML showing a parsing error?

If the tool shows an error, your XML is not "well-formed." This usually means you have a missing closing tag, a typo in an attribute name, or unescaped special characters (like < or &).

How many spaces should I use for indentation?

The standard for XML formatting is usually 2 or 4 spaces. It is purely a matter of personal preference or team coding standards. Our tool lets you choose between 2 spaces, 4 spaces, or Tabs.

Does this tool support SOAP API responses?

Yes. SOAP API responses are just standard XML. You can paste the raw, unformatted SOAP payload into the tool to instantly make it readable for debugging.

Can it format HTML instead of XML?

While HTML is similar to XML, it has looser rules (like unclosed <br> tags). This XML formatter enforces strict rules. We recommend using our dedicated HTML Beautifier tool for HTML code.

What happens to XML comments during formatting?

XML comments (formatted as <!-- comment -->) are perfectly preserved and indented alongside the rest of your nodes and attributes during the beautification process.

How do I copy the formatted XML?

Once you click "Format XML", a "Copy" button will appear in the output panel. Clicking it will instantly copy the perfectly formatted code to your clipboard.

Discover More Tools

Explore our full collection of free, privacy-first developer and SEO tools.

Browse All 134+ Tools