XML Input
Formatted Output
Lines: 1Characters: 0Bytes: 0
Lines: 1Characters: 0

What is XML Formatting?

XML (eXtensible Markup Language) is a markup language designed for storing and transporting data. The XML formatter converts compressed XML data into a well-indented, human-readable format, with syntax highlighting, error detection, and validation features.

How to Use

Basic Steps

  1. Paste or enter XML data in the left input box
  2. Select indent size (2 spaces, 4 spaces, or Tab)
  3. Click Format to beautify or Minify to remove whitespace
  4. Results display on the right with syntax highlighting
  5. Click Copy or Download to save the result

Features

FormatConvert compressed XML to well-indented, readable format
MinifyRemove all whitespace to reduce data size
Error DetectionAutomatically detect XML syntax errors and locate line numbers
Syntax HighlightingDifferent syntax elements shown in different colors

Examples

Basic Elements

<root>
  <name>张三</name>
  <age>25</age>
</root>

With Attributes

<book id="1" lang="zh">
  <title>JavaScript</title>
</book>

Nested Structure

<company>
  <dept name="技术部">
    <employee>
      <name>李四</name>
    </employee>
  </dept>
</company>

FAQ

What's the difference between XML and HTML?

XML is a data storage and transport format that allows custom tags; HTML is a display format with predefined tags. XML is stricter - all tags must be closed and attributes must be quoted.

How to fix XML format errors?

Common errors include: unclosed tags, missing quotes on attributes, unescaped special characters (e.g., & must be written as &amp;), malformed XML declaration. Use this tool's validation to quickly locate errors.

Is there a size limit for XML data?

This tool runs in the browser, performance depends on your device. We recommend processing XML data under 1MB for optimal experience.

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