DevCoreTools
Text & Formatting

XML Formatter

Format and beautify XML with readable indentation, validation feedback, and copy/download actions.

XML formatting guide

XML input

Paste a complete XML document or fragment with one root element.

Processed locally in your browser. Limit 5 MB Your input is processed in your browser and is not uploaded or sent to a server. Avoid pasting production secrets, access tokens, private keys, passwords, or sensitive customer data unless you understand the risk.
Indentation

Formatted XML

Validation status, document summary, and readable output.

Ready to format XML

Paste XML or load a sample. The formatter validates the document before producing output.

Tip: Press Ctrl+Enter or Command+Enter in the editor to format immediately.

XML Formatting Guide

Format and review XML without uploading the document

Use the formatter to validate XML structure, add consistent indentation, inspect document details, and prepare readable XML for development and debugging.

What is an XML Formatter?

An XML formatter checks well-formed XML and adds indentation and line breaks so nested elements are easier to scan, review, and maintain.

How to format XML

Paste XML, choose two spaces, four spaces, or tabs, then select Format XML. Review validation feedback before copying or downloading the result.

XML formatting vs XML validation

Validation checks whether tags, attributes, entities, and document structure are well formed. Formatting changes presentation only after validation succeeds.

Common XML syntax errors

Mismatched closing tags, unquoted attributes, duplicate attributes, unescaped ampersands, multiple root elements, and incomplete comments or CDATA make XML invalid.

Namespaces, attributes, comments, and CDATA

The formatter preserves namespace prefixes and declarations, attribute text, comments, processing instructions, CDATA sections, and self-closing elements.

Mixed-content XML

Elements containing both text and child markup stay inline so formatting does not insert whitespace that could change prose, documentation, or message content.

Privacy and local processing

XML validation, formatting, summaries, copy actions, and downloads run locally in the browser. The tool does not fetch external DTDs, entities, schemas, or remote resources.

XML Formatter FAQ

Does this XML formatter upload my XML?

No. Your XML is processed locally in your browser and is not sent to a server.

Can it format XML with namespaces?

Yes. Namespace declarations, prefixes, element names, and namespaced attributes are preserved.

Does it preserve comments and CDATA?

Yes. Comments, CDATA sections, processing instructions, declarations, attributes, and self-closing tags are preserved.

Is XML formatting the same as XML validation?

No. Validation checks whether XML is well formed. Formatting adds readable whitespace only after the document passes validation.

Can I format config files safely?

The tool does not upload files, but browser and device security still matter. Avoid sensitive production config, secrets, tokens, passwords, private keys, and customer data unless you understand the risk.

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