XML Formatter Tool
Free online XML code beautifier and minifier to make your XML files more standard and readable
XML Code Input
Formatting Options
Formatting Result
Formatted XML code will appear here
Usage Instructions
- Enter the XML code you want to format in the left text box, or choose to upload an XML file
- Adjust formatting options as needed, such as indentation size, whether to preserve comments, etc.
- Click the "Format XML" button to start processing the code
- After formatting is complete, you can copy the result or download it as a file
XML Basic Knowledge
What is XML?
XML (Extensible Markup Language) is a markup language for storing and transporting data. It is similar to HTML but designed for data transport rather than display. XML tags are not predefined, and users can create custom tags to describe data structure.
XML Basic Structure
<?xml version="1.0" encoding="UTF-8"?>
<root>
<child attribute="value">Content</child>
<self-closing />
</root>
XML Element Rules
- Case Sensitive: XML tags are case sensitive
- Proper Closing: All tags must be properly closed
- Proper Nesting: Tags must be properly nested, no overlapping
- Unique Root Element: Document must have exactly one root element
- Quoted Attributes: Attribute values must be enclosed in quotes
Common XML Components
-
Declaration:
<?xml version="1.0" encoding="UTF-8"?> -
Comment:
<!-- This is a comment --> -
CDATA:
<![CDATA[ Text containing special characters ]]> -
Processing Instruction:
<?stylesheet type="text/xsl" href="style.xsl"?>
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