XML Formatter and Prettifier

Format, indent, and validate XML documents with customizable indentation and output options.

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1. Paste your raw, minified, or poorly formatted XML into the input text area. 2. Select the indentation style - choose between 2 spaces, 4 spaces, or tabs. 3. The formatter parses and validates your XML, reporting any well-formedness errors with locations. 4. View the beautifully indented and structured XML output with proper nesting. 5. Optionally toggle the minify mode to compact the XML instead of formatting it. 6. Click the copy button to copy the formatted or minified XML to your clipboard.

About This Tool

The XML Formatter and Prettifier takes your raw, minified, or poorly formatted XML and produces clean, consistently indented output that is easy to read and maintain. Configure the indentation size, choose between spaces and tabs, and optionally sort attributes for consistent formatting across your team.

Working with XML from APIs, SOAP services, or configuration files often means dealing with dense, single-line documents that are nearly impossible to read. This formatter parses the XML, validates its well-formedness, and rebuilds it with proper indentation and line breaks while preserving all data, attributes, and namespace declarations.

The tool validates XML structure and reports errors with clear messages indicating the problem location. It handles all standard XML features including elements, attributes, CDATA sections, comments, processing instructions, and namespace declarations. Use it to debug API responses, clean up configuration files, or prepare XML for documentation.

Frequently Asked Questions

The formatter supports all standard XML features including elements, attributes, namespaces, CDATA sections, comments, processing instructions, self-closing tags, and the XML declaration. It preserves all content while reformatting the structure.
Yes. You can choose the number of spaces for indentation (2, 4, or custom) or use tabs. The formatter applies consistent indentation throughout the entire document regardless of the original formatting.
The tool validates that your XML is well-formed (proper nesting, closing tags, escaped characters). It does not perform schema validation against XSD or DTD definitions - that requires a separate schema-aware validator.
Yes. The tool includes a minify option that removes all unnecessary whitespace, line breaks, and indentation, producing the most compact XML representation while maintaining well-formedness.
Processing happens entirely in your browser, so performance depends on your device. The tool handles documents up to several megabytes comfortably. Very large files may take a moment to process but will not time out.

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