Beautify and minify XML online. Custom indentation, structure validation, and namespace support.
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XML is everywhere in enterprise and platform development even if web developers rarely see it directly. SOAP APIs return XML envelopes. Android resources and manifests are XML. Maven, Ant, and many CI tools use XML configuration. Office files (docx, xlsx, pptx) are zipped XML archives. When you receive a wall of minified XML in an API response or a config file, this tool adds indentation to make the structure immediately legible. Paste the XML into the left panel and it formats in real time. Choose two or four spaces for indentation depending on your team convention. Use the Minify mode when you need the smallest possible representation for a request payload or stored config. The tool validates as it formats: if the XML is malformed, it reports the error with a description of what went wrong. Nothing is uploaded to a server.
XML (Extensible Markup Language) is a text-based format for storing and transporting data. It is used in SOAP APIs, Android layouts, Maven and Gradle build files, Office documents (docx, xlsx), RSS feeds, and many enterprise systems. Minified XML is hard to read and debug. Formatting it adds proper indentation and line breaks to make the structure immediately visible.
Format (beautify) adds consistent indentation and newlines to make the XML readable. Minify removes all unnecessary whitespace to reduce file size. Use minify for production payloads where bandwidth matters and format for debugging or reading configs.
Yes. Namespace declarations and prefixed elements (e.g. xs:element, soap:Body) are preserved exactly as-is. The formatter only changes whitespace and indentation, never the content or structure of the document.
JSON is lighter and easier to work with in JavaScript. XML is more expressive: it supports attributes, comments, mixed content (text and elements together), and namespaces. XML is still dominant in enterprise integrations, SOAP web services, and document formats like SVG and XHTML.
The formatter performs well-formedness validation: it checks for matching tags, correct nesting, and proper encoding. It does not validate against a DTD or XML Schema (XSD). If the XML is malformed, an error message will appear describing the problem.
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