Beautify and validate XML markup • Structural indentation and syntax highlighting
System Definition BlockExtensible Markup Language (XML) remains the backbone of enterprise data exchange, SOAP APIs, and configuration files. However, machine-generated XML is typically delivered as a single, dense block of text to save bandwidth, making it completely unreadable for human engineers. By running a local XML formatter, developers can rapidly debug nested SOAP envelopes or complex SVG paths locally without risking the exposure of proprietary data payloads to online server-based formatters.
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The XML Formatter utilizes a native DOMParser API available in modern web browsers to safely tokenize unformatted XML or SVG strings. It systematically traverses the node tree, calculating hierarchical depth, and injects precise indentation (spaces or tabs) before re-serializing the nodes. It also auto-closes dangling tags and escapes invalid ampersands without executing inline scripts.
const xmlFormat = require('xml-formatter');
const formattedXml = xmlFormat('<root><child>Data</child></root>', {
indentation: ' ',
collapseContent: true
});
console.log(formattedXml);The parser attempts to auto-correct minor structural issues like unclosed trailing tags or missing quotes. However, heavily corrupted XML trees will fail the DOMParser validation, and the tool will highlight the exact line and column where the parsing failure occurred.
Absolutely. SVG is fundamentally an XML-based markup language. Dropping minified SVG code into this utility will neatly format the `<path>`, `<rect>`, and `<circle>` elements for easy manual editing.
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