XML Formatter & Validator FREE

Paste XML to instantly format, validate, syntax-highlight, and inspect the structure. 100% local — nothing is uploaded.

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FAQ

What is an XML Formatter?
An XML formatter reorganizes raw or minified XML with indentation and line breaks so it becomes easier to read and debug.
How do I validate XML online?
Paste your XML into the input box and click Validate. The tool uses your browser XML parser to detect structure errors instantly.
What does XML minify do?
Minifying XML removes extra indentation and whitespace between tags, making the file more compact.
Is my XML data uploaded anywhere?
No. Everything runs locally in your browser. Your XML never leaves your device.
What is the XML Tree View?
The Tree View shows XML nodes in a collapsible structure so you can explore nested elements more easily.

Free Online XML Formatter, Validator and Beautifier

This free XML formatter and validator lets you instantly pretty-print, minify, inspect, and validate XML directly in your browser. No upload, no account, and no data logging.

What can you do with this tool?

  • Format XML – Turn unreadable XML into clean indented markup.
  • Validate XML – Detect parsing and structure errors instantly.
  • Minify XML – Remove extra whitespace for smaller output.
  • Tree View – Explore XML nodes in a collapsible structure.

Why use an online XML formatter?

XML from APIs, feeds, and configuration files is often hard to read. A formatter adds indentation so you can inspect, debug, and edit it more easily.