Validate XML

Validate XML instantly in your browser. Paste or upload XML to check for syntax errors, highlight issues, and format valid XML with live preview and export.

Paste your input above or import a file below.
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Supported file types: .xml, .txt, .log
Total characters: 0
Options
Trim input
Pretty format if valid
Maximize output

How to Use:

  • Paste your XML into the XML Input box or click Choose File to upload a .xml, .txt, or .log file.
  • The tool automatically checks if your XML is well-formed and shows either a success message or a detailed error.
  • Toggle Trim input to remove extra whitespace from the beginning and end of your input.
  • Toggle Pretty format if valid to reformat your XML with indentation when it passes validation.
  • Toggle Maximize output to expand the output area for easier viewing.
  • The validation runs live as you type or adjust settings.
  • Click Copy Output to copy the validation result or formatted XML.
  • Use Export to File to download the output as a .txt file.
  • Click Clear All to reset the tool and load the demo XML again.

What Validate XML can do:

Validate XML gives you quick, reliable feedback on your XML structure. It checks whether your XML is well-formed, catches common mistakes like missing end tags or bad nesting, and optionally reformats valid XML for better readability. You don’t need any external software just paste your data in and the result updates instantly. Whether you’re debugging XML for APIs, config files, or data exchange formats, this tool helps you verify and fix issues quickly.

Example:

Input (valid):

<note>
  <to>Tove</to>
  <from>Jani</from>
  <body>Don't forget me this weekend!</body>
</note>

Output:

<note>
  <to>Tove</to>
  <from>Jani</from>
  <body>Don't forget me this weekend!</body>
</note>

Input (invalid):

<note><to>Tove</to><from>Jani</from><body>Oops</note>

Output:

Invalid XML:
...error: Opening and ending tag mismatch...

Common Use Cases:

Validate XML is perfect for developers checking API payloads, verifying XML export formats, cleaning up config files, or preparing XML for processing or transformation. It’s a fast and easy way to make sure your XML won’t break anything downstream.

Useful Tools & Suggestions:

Before you even get to Validate XML, it helps to run it through Prettify XML so any structure issues are easier to spot. And once it’s clean, Convert XML to JSON can be a solid next step if you’re planning to shift formats without losing data.

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