XML Formatter
Free XML Formatter & Beautifier Online
About XML Formatter
XML Formatter is a free, browser-based tool that takes any XML string — no matter how compressed, disorganized, or inconsistently indented — and reformats it into clean, properly structured, readable XML with correct hierarchical indentation. No installation, no account, and no server upload required.
XML (eXtensible Markup Language) remains one of the most widely used data formats in the world despite the rise of JSON. It is the foundation of SOAP web services and WSDL definitions, Android application resources (layouts, strings, manifests), Microsoft Office document formats (DOCX, XLSX are ZIP archives of XML files), RSS and Atom syndication feeds, SVG vector graphics, Maven and Ant build system configurations, Spring Framework application contexts, XSLT stylesheets, XML Schema Definition (XSD) files, and countless industry-specific standards in healthcare, finance, government, and publishing.
When XML is returned by APIs, exported from databases, or generated by automated systems, it is frequently produced as a single compressed line with no indentation — or with wildly inconsistent spacing that makes reading the document structure nearly impossible. Even a moderately complex XML document with 10-15 levels of nesting becomes completely unreadable without proper formatting. The XML Formatter solves this instantly, producing well-indented, immediately readable XML that developers can understand at a glance.
XML (eXtensible Markup Language) remains one of the most widely used data formats in the world despite the rise of JSON. It is the foundation of SOAP web services and WSDL definitions, Android application resources (layouts, strings, manifests), Microsoft Office document formats (DOCX, XLSX are ZIP archives of XML files), RSS and Atom syndication feeds, SVG vector graphics, Maven and Ant build system configurations, Spring Framework application contexts, XSLT stylesheets, XML Schema Definition (XSD) files, and countless industry-specific standards in healthcare, finance, government, and publishing.
When XML is returned by APIs, exported from databases, or generated by automated systems, it is frequently produced as a single compressed line with no indentation — or with wildly inconsistent spacing that makes reading the document structure nearly impossible. Even a moderately complex XML document with 10-15 levels of nesting becomes completely unreadable without proper formatting. The XML Formatter solves this instantly, producing well-indented, immediately readable XML that developers can understand at a glance.
starKey Features
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Smart XML Indentation
Applies consistent, correct indentation to every XML element based on its nesting depth, immediately revealing the hierarchical document structure with visual clarity.
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Well-formedness Validation
Checks that your XML is well-formed before formatting — catching unclosed tags, mismatched element names, invalid attribute syntax, and illegal characters.
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XML Minification
Strip all unnecessary whitespace from XML to produce a compact single-line representation for use in APIs, storage, or data transmission where size matters.
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100% Client-side Processing
All XML processing runs in your browser. SOAP envelopes, WSDL definitions, Android layouts, and other sensitive XML documents never leave your device.
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File Upload and Drag-Drop
Upload .xml, .svg, .wsdl, .xsd, .xsl, or .html files directly from your computer or drag and drop them onto the input area for immediate formatting.
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Copy and Download
Copy the formatted XML to your clipboard with one click, or download it as an .xml file for use in your IDE, version control, or project directory.
help_outlineHow to Use
1
Paste Your XML
Paste your XML string into the input area, or click the upload button to load an .xml file from your computer. Drag and drop is also supported.
2
Click Format
Press the Format button. The tool validates that your XML is well-formed and then reformats it with consistent indentation and proper structure.
3
Review the Output
Examine the formatted XML in the output area. Any XML errors detected during validation are reported in the status bar with descriptive messages.
4
Copy or Download
Copy the formatted XML to your clipboard for pasting into your editor, IDE, or Postman — or download it as a file to your computer.
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SOAP Web Service Debugging
Format and inspect SOAP XML request and response envelopes when debugging web service integrations, understanding WSDL-based APIs, or troubleshooting WS-Security headers.
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Android Resource File Formatting
Beautify Android layout XML, strings.xml, AndroidManifest.xml, and other Android resource files that have become minified or received inconsistent edits from multiple contributors.
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RSS and Atom Feed Review
Format RSS and Atom XML syndication feeds to review their complete structure, check for required elements, verify namespace declarations, and inspect item metadata.
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Build Configuration Cleanup
Beautify Maven pom.xml, Ant build.xml, Spring application-context.xml, and other build or framework configuration XML files to make them easier to read and maintain.