fiokit.

XML Formatter and Validator

Format, compact and validate XML syntax with one tool. Inspect readable output without executing the document.

Hover over or focus a field for help. Press Escape to close.

Up to 200,000 characters. Processed locally.
0 UTF-16 units
0Words
0Characters
0Without spaces
0Lines

How it works

Paste your content or load the example. Choose the available options, run the tool, then copy or download the result.

A practical example

XML

<root><name>Anna</name></root>

Frequently asked questions

Is my input sent to a server?

No. Your content is processed in this browser. It is never sent to the server or saved.

What should I know about XML Formatter and Validator?

Validation checks well-formed syntax, not XSD schemas. DTDs and custom entities are disabled. Formatting may normalize whitespace and mixed content.