Skip to content
Developer Tools

XML Formatter

Format, validate and minify XML with clear error reporting.

FreeNo loginBrowser basedPrivacy friendly
By MerQPrime Editorial TeamUpdated 2026-06-20Reviewed 2026-06-20Editorial policy
Loading tool…

Overview

About the XML Formatter

Clean up XML documents in seconds. Paste your markup to beautify it with consistent indentation, validate its structure with helpful errors, or minify it for compact storage and transport.

Benefits

How it works

  1. 1Paste or type your XML into the input area.
  2. 2Choose Format to pretty-print, Minify to compress, or Validate to check syntax.
  3. 3Syntax errors are reported with a clear, human-readable message.
  4. 4Copy the result to your clipboard when you're done.

Applications

Use cases

  • Debug API responses and configuration files in XML format.
  • Beautify minified XML exports for easier reading.
  • Validate XML before importing into another system.
  • Shrink XML payloads before shipping to production.

Support

Frequently asked questions

Is my XML uploaded anywhere?
No. All parsing, formatting and validation happen locally in your browser.
Does it support namespaces?
Yes. Standard XML with namespaces is supported for formatting and validation.
Why does it say my XML is invalid?
Common causes include unclosed tags, mismatched opening and closing elements, invalid characters or malformed attributes. The error message indicates what went wrong.

Explore more

Learn more

Explore more

Related tools, guides & pages

XML Formatter & Validator (Pretty-Print) | MerQPrime