XML Formatter & Validator
Format, validate, and minify XML with syntax highlighting and error detection.
100% Client-Side • Privacy ProtectedIndentation
Features
- Format and beautify XML with customizable indentation (2 spaces, 4 spaces, or tabs)
- Validate XML syntax with instant error detection and detailed messages
- Minify XML to reduce file size by removing whitespace
- Real-time processing as you type
- Browser-based validation using native DOMParser
How to Use the XML Formatter
- 1Paste your XML data into the left input area
- 2Choose "Format" to beautify or "Minify" to compress
- 3Adjust indentation style if formatting (2 spaces, 4 spaces, or tab)
- 4View validation status — valid XML shows green, errors show red with details
- 5Click "Copy" to copy the formatted XML to your clipboard
Frequently Asked Questions
Is my XML data safe?
Yes, all XML processing happens in your browser using the native DOMParser API and xml-formatter library. Your data never leaves your device.
What XML features are supported?
This tool supports standard XML 1.0 including elements, attributes, CDATA sections, comments, and processing instructions. Namespaces are also supported.
Can I validate XML with schemas (XSD)?
No, this tool only validates well-formed XML syntax. It does not validate against XML schemas (XSD) or DTDs. It checks that tags are properly nested and closed.