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XML Formatter and Validator: Beautify and Minify XML Online

Paste XML to check that it is well formed, then indent it or minify it. Errors show what is wrong. Runs in your browser.

Paste your XML and press Beautify to indent it, or Minify to remove the spaces between tags. Your browser first checks that the XML is well formed and reports an error if it is not.

What it does

Example

Before

<?xml version="1.0"?><catalog><book id="1"><title>Config files</title><price>9.99</price></book><book id="2"><title>Ports</title><price>5.00</price></book></catalog>

After

<?xml version="1.0"?>
<catalog>
  <book id="1">
    <title>Config files</title>
    <price>9.99</price>
  </book>
  <book id="2">
    <title>Ports</title>
    <price>5.00</price>
  </book>
</catalog>

Frequently asked questions

What does well formed mean?
Every tag is closed, tags nest correctly, attribute values are quoted and there is one root element.
Does it validate against a schema?
No. It checks the basic rules of XML only, not an XSD or DTD.
Will it change my text content?
Spaces around text inside a tag are trimmed. Everything else is kept.
Why do I see a parser error?
The browser found a problem such as a missing closing tag. The message names the issue.

Runs in your browser. Nothing you type is sent to this site. Updated 2026-10-11.

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