What does the XML formatter do?

It reformats XML with consistent, readable indentation — useful for a minified API response, a config file, or any XML that arrived as one long unreadable line.

Yes. Switch to Minify mode to strip whitespace between tags and produce the smallest version of your XML, useful for reducing payload size.

Does formatting preserve attributes and comments?

Yes — element attributes are preserved exactly, and XML comments are kept in place during formatting.

Does this validate against a schema (XSD/DTD)?

No — this checks that your XML is well-formed (correctly nested, properly closed tags, valid syntax), not that it matches a particular schema. Schema validation is a different, more specialized task this tool doesn't attempt.

Can I copy or download the result?

Yes — use the Copy button to copy the result to your clipboard, or Download to save it as an .xml file.

XML Formatter Online

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Paste XML, then format it with readable indentation, validate it's well-formed, or minify it — entirely in your browser.

✓ Never uploaded — processed in your browser

Paste your XML

Never uploaded

Formatting happens entirely in your browser — your XML never touches our servers.

Instant

No waiting, no upload progress bar — results appear the moment you click.

Free, no limit

No account, and no limit on how many times you can use it.

What is an XML Formatter?

An XML formatter takes minified or messy XML and reformats it with consistent indentation, making it readable — useful when debugging an API response, reviewing a config file, or checking a document that arrived as one long unreadable line. This tool also validates and minifies, so the same page covers all three related tasks.

How to Format XML Online

Paste or upload your XML. Paste directly into the editor, or click "Upload a file" to load an .xml file's contents.
Choose a mode. Format for readable indentation, Validate to check it's well-formed, or Minify to strip whitespace.
Click the action button. The result appears below — including a specific error message if your XML isn't well-formed.
Copy or download. Copy the result to your clipboard, or download it as an .xml file.

Frequently Asked Questions

What is an XML formatter?

A tool that takes minified or messy XML and reformats it with consistent indentation, making it readable.

Can I validate XML online?

Yes. Switch to Validate mode and paste your XML — invalid XML shows the parser's actual error message.

Can I minify XML?

Yes. Switch to Minify mode to strip whitespace between tags.

Is my XML data uploaded anywhere?

No. This tool runs entirely in your browser — your data is never sent to CurePDF's servers.

Is the XML formatter free?

Yes, with no account required and no limit on how many times you can use it.

Format your XML now