What can I do with the XML formatter?

You can format (pretty-print) XML with 2 or 4 spaces indentation, minify XML to reduce file size, and validate XML syntax to check for errors — all in your browser.

Does the tool validate my XML?

Yes, the tool uses the browser's built-in DOMParser to validate XML. If there are syntax errors, it will display a clear error message showing what went wrong.

Is there a file size limit?

Since all processing happens in your browser, there's no strict limit. However, very large XML files (over 10MB) may cause slower performance depending on your device.

XML Formatter

Format, validate, and minify XML documents online. Pretty-print XML with customizable indentation.

Input

How to Use

Format, validate, and minify XML documents online. Pretty-print XML with customizable indentation.

1Paste your XML string into the input panel.
2Click Format to pretty-print the XML with proper indentation and line breaks.
3Use Minify to compress the XML into a single line for production use.
4Errors in the XML structure are highlighted so you can fix them before copying.

Key Features

Pretty-prints XML with configurable indentation (2 or 4 spaces)
Minifies XML by stripping whitespace for compact output
Validates XML structure and highlights syntax errors with line numbers
Handles large XML documents quickly with one-click copy

Frequently Asked Questions

Learn More

XML Formatter Guide: Clean and Validate XML Online