XML Beautifier & Formatter Online

Mode
BeautifyMinify
Remove comments
Self-close empty tags
Input XML
0 / 500,000 characters
Beautified XML
Output waiting

Make One-Line XML Readable Again

XML logs, SOAP responses, and server configuration files often arrive flattened onto a single line without indentation. Reading nested nodes or spotting unclosed tags across thousands of continuous characters slows down development and API troubleshooting.

The editor indents and formats unorganized XML markup directly in your browser. Before applying indentation, the parser checks the document against the W3C XML 1.0 specification. If a tag is unclosed or an ampersand is missing its entity syntax, the error alert flags the exact line and column number. Once valid, you can pick 2 spaces, 4 spaces, or tabs, or switch to minify mode to compress payloads for production delivery.

If you are working with search engine sitemaps, verify URL counts and last-modified timestamps with our XML sitemap validator. When you need to extract repeating XML data into spreadsheet columns, use our XML to CSV converter to flatten records instantly.

What the Beautifier Leaves Untouched

How the parser protects sensitive XML elements, entities, and inline content during formatting.

XML ConstructHow It Is Handled
CDATA sectionsCopied character for character. Special characters like < and & inside the CDATA block remain unescaped.
Comments & prolog declarationsKept in place by default, including comments placed before the root element. Stripped only when Remove comments is enabled.
Namespaces & prefixesAll xmlns declarations and namespace prefixes (such as soap: or xs:) stay intact without reordering or removal.
Mixed contentTags containing mixed text and inline elements stay on a single line to preserve inline text spacing.
Entity referencesStandard and numeric entities such as &amp;, &lt;, and &#160; remain encoded as entered.
Frequently Asked Questions

XML Beautifier FAQ

No. The formatter only adjusts whitespace between parent and child elements where indentation does not affect data semantics. Text inside elements, CDATA blocks, and inline mixed-content tags remain intact to prevent data corruption.
Yes. All validation, formatting, and minification run entirely inside your browser through client-side JavaScript. Your XML never leaves your device, and our tool does not generate public share links or store pasted input.
When syntax errors occur, the error alert indicates the line and column number reported by the parser. Check that line and the lines directly preceding it for unclosed tags, misspelled closing names, unescaped ampersands, or multiple root elements.
No. It checks whether XML is well-formed: valid tag nesting, a single root element, and correct entity syntax. Validating against an XSD or DTD schema requires definitions that belong in your IDE or test pipeline.
Use beautify for reading and debugging during development. Use minify to strip unnecessary whitespace and optional comments before sending payloads over a network, storing them in cache, or bundling them into mobile assets.
This error occurs when invisible characters, extra spaces, or a Byte Order Mark (BOM) appear before the opening XML declaration. The XML specification requires that nothing precede the declaration. This tool automatically trims leading BOMs and whitespace to keep your XML valid.
Yes. The W3C XML standard treats full empty tag pairs and self-closing tags as functionally identical. You can enable the Self-close empty tags switch if you prefer compact syntax or disable it to maintain full tag pairs.
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Disclaimer
All XML formatting, validation, and minification run strictly in your web browser. No XML documents, schema definitions, or API payloads are ever transmitted to or stored on our servers.