XML Formatter

How to Use the Free Client-Side XML Formatter

Paste your XML, choose Format or Minify, and copy the cleaned-up result. Processing uses the browser's native DOMParser, so your data is handled entirely on your device.

1. Paste your raw XML data into the input area.
2. Click Format to beautify with indentation or Minify to compress the whitespace.
3. Copy the output to use in your project.

When to Use XML Formatter

Minified XML is technically valid and practically unreadable, and sooner or later everyone meets it: a config file crammed onto one line, a data feed from an external system, an API response that arrives as a dense wall of markup. This formatter turns that back into something a human can actually parse. It respects XML 1.0 syntax — proper tag nesting, attribute formatting, and a valid declaration — and it understands the full family of XML-based formats, including XHTML, SVG, RSS, SOAP, and custom schemas. So whether you are beautifying a sitemap, debugging a SOAP response, or cleaning up a build artifact, the same tool works.

The Minify direction is just as useful in production. Stripping insignificant whitespace can shrink a payload by 30 to 50 percent before it goes over the network, and knowing the same document can be expanded and compressed at will is genuinely convenient. For validation before formatting, the tool also flags common XML errors like missing closing tags, mismatched case, and invalid characters.

XML Formatter Tips and Best Practices

1. Validate before you format. The formatter can only beautify valid XML, so check for syntax errors first, fix them, then format for readability.
2. Remember that formatting only adds indentation. It does not repair structural problems like missing closing tags, so run a validation pass separately when the source is suspect.
3. Minify for network transfer — a trimmed XML payload can be 30 to 50 percent smaller, which adds up on high-volume feeds.
4. Use the tool on any XML dialect you encounter, from XHTML to RSS to custom schemas, rather than reaching for format-specific tools.

Why Client-Side Privacy Matters for formatting configuration files and data feeds containing proprietary information

XML appears in the unglamorous but sensitive corners of systems: application configuration, service feeds, API exchanges, and integration payloads. Formatted properly, it reads clearly — which also means it reveals structure, endpoint details, and data shapes. Sending that markup to an online formatter hands a third party a readable copy of your internal data model.

This XML Formatter runs entirely in your browser using the native DOMParser. Your XML is parsed, indented, and minified locally, and never uploaded to any server. Configuration and feed data stay on your machine, even while you are making it presentable.