XML Formatter

XML documents remain the foundation of enterprise data exchanges, SOAP web services, Android manifest files, SVG graphics, and RSS feeds. When exported from production systems or minified over APIs, XML is frequently collapsed into dense single-line strings stripped of indentation.

Troubleshooting unformatted XML manually is frustrating and error-prone because matching closing tags and verifying nested tag hierarchies across thousands of elements is difficult to do by eye.

This in-browser XML formatter parses, indents, and beautifies raw XML documents right inside your browser. It organizes nested element trees, formats XML attributes, and provides minification options for production deployments.

To inspect structured payloads, format alternative representations with the JSON formatter and audit sitemap records using the XML sitemap validator.

Step-by-step practical guide

1. Paste your unformatted XML or SVG code into the editor input workbench.
2. Choose your formatting mode: Beautify / Pretty Print or Minify / Compact.
3. Select your indentation depth: 2 spaces, 4 spaces, or Tab indentation.
4. Click the Format XML button to parse the XML through the browser DOM parser and reconstruct the tree.
5. Review the formatted XML with collapsible hierarchy indicators.
6. Click Copy Formatted XML to paste the clean markup into your editor or configuration file.

Engineering specifications and execution details

Parses XML using the browser native DOMParser API to detect syntax errors before formatting.

Recursively traverses the DOM node hierarchy, handling Element, Text, CDATA, and Comment node types.

Normalizes XML element attributes with consistent spacing and quote formatting.

Supports self-closing element tags (<element />) where appropriate in XML schemas.

Executes entirely in browser JavaScript without server latency or network traffic.

Data privacy and memory isolation

All XML data payloads, proprietary schemas, and enterprise records remain private on your computer.

Zero XML documents are transmitted over the internet or logged on third-party servers.

Common production use cases

• Enterprise software engineers debugging SOAP API payloads and SAML single sign-on response tokens.
• Mobile app developers formatting AndroidManifest.xml and string resource configuration files.
• Web designers beautifying exported SVG vector graphics to clean up unnecessary layer metadata.
• System administrators inspecting configuration files for Tomcat, Maven (pom.xml), or Jenkins pipelines.
• Data engineers validating RSS and Atom syndication feeds before public syndication.

Edge cases and operational boundaries

• CDATA blocks: Blocks containing <![CDATA[ ... ]]> are preserved with their exact internal formatting and character contents intact.
• XML namespaces: Elements declaring xmlns attributes maintain proper prefix mapping throughout child elements.
• Unclosed tags: Syntax flaws and unclosed tags are caught by the parser and reported with line-specific error notices.
• Mixed content elements: Elements containing both text and child elements are formatted to preserve intended typographical spacing.