PRIVATE BROWSER TOOL

XML Formatter

Pretty-print and validate XML locally. Nothing is uploaded.

Input165 characters · 1 lines
Result0 characters · 0 lines
Processed locally on this device.
Unicode-safe UTF-8 handling

Related tools

LOCAL-FIRST TEXT UTILITIES

Private tools for every writing system.

Your text never leaves this browser. No uploads, accounts, or server processing.

Word segmentation uses your browser’s internationalization engine, with Unicode-safe handling across Latin, CJK, Hangul, Cyrillic, Arabic, Devanagari, and more.

About, editorial standards, and privacy

CODE FORMATTERS · LOCAL PROCESSING

Make nested XML easier to read and review

The XML Formatter adds consistent line breaks and indentation around elements while keeping attributes and text content intact. The browser parser checks the document first, so malformed XML is reported instead of producing misleading output.

COMMON USES

When this tool is useful

  • Read compact XML from feeds, APIs, exports, or configuration files.
  • Prepare an XML example for a ticket, guide, or code review.
  • Detect mismatched tags before passing XML to another system.

THREE STEPS

How to use the XML Formatter

  1. Paste the XML document, including its root element, into the input panel.
  2. Select Format to parse and indent the document locally.
  3. Review the result, then copy or download the formatted XML.

PRIVACY

Your input stays in this browser

The operation runs on your device and does not require the input to be uploaded. Copy and download actions happen only when you choose them. Avoid treating encoded output as encryption, and follow your own security requirements for confidential data.

WORKED EXAMPLE

XML Formatter: input and expected result

Input or settings

<note><to>Ada</to></note>

Expected result

<note>
  <to>
    Ada
  </to>
</note>

Two-space nesting makes the relationship between note and to visible. Malformed XML is rejected before formatting.

METHOD & LIMITS

How the XML Formatter works

Processing method

DOMParser checks well-formed XML. XMLSerializer produces markup that is then laid out with indentation.

What to review

This does not validate XSD or DTD constraints. Serialization and indentation can change whitespace, especially in mixed content or signed XML; compare the result before using it.

References: DOMParser parsing behavior

PRACTICAL NOTES

What to know before using it

Does this validate against XSD or DTD?

No. It checks that the XML is well-formed but does not apply an external schema.

Will attributes be removed?

No. Formatting changes whitespace and layout; it does not intentionally remove element attributes.