XML Formatter
Format, validate, and beautify XML data with syntax highlighting. Minify or pretty-print XML instantly. Process structured data directly in your browser with no file uploads to servers..
XML Editor
What is XML Formatter | Rune
XML Formatter beautifies, validates, and minifies XML data instantly. Essential for developers working with SOAP APIs, RSS feeds, SVG files, configuration files, and legacy data systems that rely on XML format. Handles complex data structures with nested objects, arrays, and special characters without data loss.
Supports large files with optimized parsing that processes thousands of records efficiently. Preview converted data in a formatted view before downloading or copying to your clipboard. This tool runs entirely in your browser, requiring no software downloads or installations on your device. All processing is handled locally in your browser.
Key Features of XML Formatter
Everything you need for professional xml formatter
Beautify & Minify
Pretty-print XML with proper indentation or minify to a single line for production use.
XML Validation
Instantly detect and highlight syntax errors including unclosed tags and malformed attributes.
Syntax Highlighting
Color-coded XML display distinguishes elements, attributes, text content, and comments.
Multiple Formats
Works with SOAP XML, RSS/Atom feeds, SVG files, Maven POM files, and any valid XML.
Quick Copy & Download
Copy formatted XML to clipboard or download as a file with one click.
Privacy Safe
All processing happens locally in your browser. Your XML data never leaves your device.
How to Use XML Formatter
Follow these simple steps to get started
Paste XML
Paste your XML data from an API response, config file, or any source.
Format or Validate
Click prettify to format with indentation, minify to compress, or validate for errors.
Copy Clean XML
Copy the formatted XML to use in your code, APIs, or configuration files.
Pro Tips
- Paste SOAP API responses to quickly inspect the XML structure and identify issues.
- Use minify mode to reduce XML file size before embedding in API requests.
- Validate XML before deploying configuration files to catch syntax errors early.
- Works great for formatting SVG files to make them human-readable.
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Frequently Asked Questions
Everything you need to know about XML Formatter
What is XML?
XML (eXtensible Markup Language) is a markup language for storing and transporting structured data. It's used in SOAP APIs, RSS feeds, SVG files, and many enterprise systems.
How does XML validation work?
The validator checks your XML for well-formedness, ensuring all tags are properly opened and closed, attributes are quoted, and the document structure is valid.
Is my XML data safe?
Yes. All formatting and validation happens in your browser. No data is sent to any server.
Can I format large XML files?
Yes, the tool handles large XML files efficiently in your browser. Very large files may take a moment to process.
Does it support XML namespaces?
Yes, the formatter preserves XML namespaces, CDATA sections, processing instructions, and comments.
What's the difference between beautify and minify?
Beautify adds indentation and line breaks for readability. Minify removes all unnecessary whitespace to create the smallest possible output.
Is XML Formatter free?
Yes! XML Formatter is 100% free with no usage limits. Format, validate, and beautify XML as many times as you need without creating an account.
Can I use it for SOAP API responses?
Absolutely. Paste raw SOAP XML responses to beautify them with proper indentation, making it much easier to read and debug SOAP API payloads.
Still need help?
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