XML Formatter & Beautifier

Beautify or minify XML in your browser. Preserves CDATA, comments and attributes...

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Quick answer

An XML formatter beautifies raw XML by adding line breaks and indentation so nested elements are readable, and validates that it is well-formed. YaliKit's version formats live as you type with 2-space, 4-space or tab indent, keeps CDATA sections byte-for-byte, preserves comments and attributes, and can minify back to one line. It runs entirely in your browser, so nothing is uploaded.

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256-bit Encryption
Cloud Processing
Mobile Friendly

Formatter Features

Beautify Mode - Indent with 2, 4 spaces or tab
Minify Mode - Collapse whitespace between tags
CDATA Safe - CDATA kept byte-for-byte
Validation - Line and column on errors
Size Readout - Input vs output bytes and lines
Copy & Download - Copy or save as a .xml file

Why Use XML Formatter & Beautifier?

Format or Minify Live

Paste XML and it beautifies as you type, with 2-space, 4-space or tab indent. Switch to Minify to collapse it back to one compact line.

Preserves CDATA & Comments

CDATA sections are kept byte-for-byte, and comments, processing instructions and DOCTYPE all survive the round trip untouched.

Catches Malformed XML

Mismatched, unclosed or stray tags surface a plain-English error with the exact line and column instead of a blank screen.

100% In Your Browser

Every byte is parsed on your device with no upload. Your XML never touches a server, so it works offline and stays private.

Attributes Stay Intact

Attribute order, values, quote style and entities like & are preserved exactly, so formatting only changes whitespace, never data.

See the Size Change

A live scoreboard shows input vs output bytes and lines, and the exact percent saved when you minify.

Common Uses for the XML Formatter

API & SOAP Debugging

Beautify a minified XML or SOAP response to spot the element you need in a nested structure.

Config Files

Format pom.xml, web.config or Android layouts for review, or minify them for compact storage.

Feeds & Sitemaps

Pretty-print an RSS, Atom or sitemap.xml document to read and edit its entries easily.

Data Exports

Clean up XML exports from databases and legacy systems into a readable, indented shape.

How It Works

1

Paste Your XML

Drop in an XML document, API response, config file or feed. Or hit Load sample to see it in action.

2

It Formats Live

Valid XML beautifies instantly with your chosen indent. Malformed XML is flagged with the exact line and column. Switch to Minify to collapse it to one line.

3

Copy or Download

Copy the formatted XML to your clipboard, or download it as a .xml file. Everything happens locally in your browser.

Tips for Formatting XML

Use Tab Indent for Diffs

Formatting with tabs keeps your XML consistent with editors that expand tabs, which can make version-control diffs cleaner.

Minify Before Sending

Minify XML payloads before posting them to an API to trim the bytes on the wire without changing any data.

Whitespace Can Be Significant

Some documents rely on whitespace inside elements. Formatting trims whitespace between tags, so review the output for whitespace-sensitive content.

Frequently Asked Questions

Paste your XML into the input box and it beautifies live as you type, adding line breaks and your chosen indentation. Pick 2 spaces, 4 spaces or tab, and the formatter keeps CDATA, comments and attributes intact. There is no button to hunt for, and nothing is uploaded.
Beautifying XML adds consistent indentation and line breaks so nested elements are easy to read, without changing the data itself. The opposite is minifying, which strips the whitespace between tags to shrink the file for transport or storage.
Yes. CDATA sections are kept byte-for-byte. The raw content inside <![CDATA[ ... ]]> is never escaped, re-indented or altered, so markup and special characters like < & inside a CDATA block stay exactly as you wrote them.
No. Attribute order, values and quote style are preserved exactly, and entities such as &amp;, &lt; and &#10; are left untouched. Formatting only adjusts the whitespace between tags, so your data never changes.
Instead of crashing or showing a blank result, the tool reports a friendly, specific error. Mismatched tags, unclosed tags, stray closing tags and unterminated comments or CDATA are each described with the exact line and column so you can fix them fast.
Beautify adds indentation and line breaks for readability, useful while reading or debugging. Minify removes the whitespace between tags to produce a single compact line, useful for reducing payload size in APIs or storage. You can switch between the two with one click.
Yes. The formatter runs entirely in your browser using client-side JavaScript. Your XML is never uploaded to a server, so there are no file-size limits and the tool works even offline.
Yes. The XML declaration (<?xml ... ?>), other processing instructions, comments and DOCTYPE declarations are all preserved and placed on their own lines when beautifying.

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