XML Formatter & Validator
Format, validate, and beautify XML documents with syntax highlighting, XPath queries, and diff comparison
Entrada XML
Salida Formateada
Formatted XML will appear here
Cómo a formato XML en línea?
Format and validate XML documents with our professional XML formatter. Features include syntax highlighting, collapsible tree view with search, XPath queries, line-by-line diff comparison, transform operations, and file upload/download. Perfect for API development, data processing, and XML document management.
Características
- Sintaxis-highlighted pretty-print y minify
- Collapsible tree ver con search y XPath copy
- XPath query engine con native navegador evaluation
- Line-por-line diff comparison con color-coded changes
- Transform operations: remove comments, sort attributes, manage declarations
- Archivo upload, drag-y-drop, download, y copy
Cómo usar
- Pega o upload tu XML.
- Haz clic Formato a pretty-print y validate.
- Copy o download el formatted XML.
Consejos y buenas prácticas
- Always validate tu datos before procesamiento a catch sintaxis errors early.
- Usar el copy botón a quickly transfer formatted salida a tu portapapeles.
- For large files, consider breaking them into smaller chunks for better performance.
- Back up tu original datos before applying cualquier transformations.
- Use keyboard shortcuts for faster workflow: Ctrl+A to select all, Ctrl+C to copy.
Preguntas frecuentes
Do you store my XML?
No. All processing happens in your browser. Your data never leaves your device.
What XPath expressions are supported?
We use the browser's native XPath engine, supporting the full XPath 1.0 spec: //element, /path/to/node, [@attribute='value'], text(), count(), position(), and all axes (child, descendant, parent, ancestor, etc.).
Does it support XSD validation?
Not yet. We currently check well-formedness only. XSD/DTD schema validation is planned for a future update.
Can I format large XML files?
Yes, but very large files (over 1MB) may cause slower performance. For optimal results, keep files under 10MB.
How does the diff comparison work?
Paste your original XML in the input and a modified version in the diff tab. Click Compare to see a color-coded unified diff with additions (green), removals (red), and summary statistics.
Can I search within the tree view?
Yes. Use the search box above the tree view to filter nodes by tag name, attribute name/value, or text content. Matching nodes are highlighted and parent nodes auto-expand.
What transform operations are available?
Remove Comments strips all XML comments, Remove Empty removes elements with no content, Sort Attributes alphabetizes attributes, and you can add or remove the XML declaration.
Is my data secure?
Absolutely. All XML processing happens locally in your browser using JavaScript. No data is transmitted to any server.