This tool is an online XML code formatting and compression tool that helps developers quickly beautify messy XML code or compress code size to reduce transmission and loading time. All operations are performed locally in your browser, and code is never uploaded to any server.

Main Features

• Format/Beautify:Indent, line-break, and align single-line or messy XML code according to standard style, improving code readability.
• Compress:Remove all excess whitespace, line breaks, and comments, shortening code length and reducing file size.
• Syntax Validation:Use the browser\'s native DOMParser to check XML structure integrity and quickly locate unclosed tags, syntax errors, and other issues.

What is XML?

XML (Extensible Markup Language) is a markup language used for storing and transmitting data. It uses tags to describe data and features self-descriptiveness, cross-platform, and cross-language characteristics. XML is widely used in Web services (SOAP), configuration files (such as Android, Maven, Spring), RSS/Atom feeds, Office documents (.docx, .xlsx), and other scenarios.

Difference Between XML and HTML

• Different purposes:XML is used for transmitting and storing data; HTML is used for displaying data.
• Different tags:XML tags are custom-defined; HTML tags are predefined.
• Different strictness:XML requires all tags to be closed and is case-sensitive; HTML is relatively lenient.
• XML declaration:XML typically begins with .

Main Use Cases

• Debug XML responses returned by SOAP interfaces and view business data.
• View Android layout files (activity_main.xml, etc.).
• Inspect Maven (pom.xml) and Spring configuration files.
• Process RSS/Atom feed content.
• Troubleshoot XML format errors and quickly locate tag closure issues.

Tool Features

• Single-column editing with line numbers: Input and output in the same text box with line numbers on the left, providing an IDE-like editing experience.
• Preserve XML declaration and CDATA: Retains declaration and CDATA blocks as-is after formatting.
• Configurable options: Supports preserving blank lines, removing comments during compression, removing whitespace between tags, and more.
• Configurable indentation: Supports 2 spaces, 4 spaces, and Tab indentation styles.
• Real-time statistics: Displays code line count, character count, node count, and estimated size in real time.
• Precise syntax validation: Checks XML structure integrity based on DOMParser and provides specific error locations.
• Safe and reliable: Pure front-end execution, no data uploaded, absolutely protects your code privacy.