XML Formatter & Beautifier
Format, indent, and validate XML instantly. Minify XML to a single line or beautify it with configurable indentation. No uploads — runs entirely in your browser.
Common XML uses
Config filesMaven
pom.xml, AndroidManifest.xml, web.config, Spring beans
Data formatsRSS/Atom
feeds, SVG images, XHTML, Office Open XML (docx/xlsx)
Web servicesSOAP
APIs, WSDL, XML-RPC, Salesforce APIs, SAP integrations
Frequently Asked Questions
What does XML formatting do? +
Formatting (or beautifying) XML adds consistent indentation and line breaks to make it human-readable. Raw or minified XML is valid but hard to read — a formatter restructures it so each element is clearly nested. This is essential when debugging API responses, config files, or data exports.
Does this validator catch all XML errors? +
It catches structural XML errors: unclosed tags, malformed attributes, incorrect nesting, and invalid characters. It does not validate against a DTD or XSD schema — for that you'd need a schema-specific validator. Most common XML issues (like copy-pasting truncated XML) are caught here.
What's the difference between XML and JSON? +
Both are data interchange formats. XML uses angle-bracket tags and supports attributes, namespaces, and mixed content (text + elements together). JSON uses curly braces and is more compact. Modern APIs mostly use JSON, but XML is still dominant in enterprise systems, SOAP services, RSS feeds, and SVG files.
Can I minify XML to reduce file size? +
Yes — the Minify button removes all whitespace between elements, reducing file size. For XML used in production APIs or large data files, minification can reduce size by 30–60%. The content is identical; only the whitespace is removed.