XML Formatter

XML Formatter

Paste XML to validate it and pretty-print it with clean two-space indentation.

The XML Formatter takes cramped, machine-generated XML and lays it out with clean indentation so humans can actually read it. Feeds, invoices, sitemaps, and configuration files often arrive as one endless line. When something looks wrong in that wall of tags, finding the mistake by eye is painful and slow.

Paste your XML and the tool first parses it with the browser's own XML parser, the same strict engine web applications rely on. If the document is malformed, you get the parser's real error message instead of a silently broken layout. If it is valid, the formatter walks the document tree and rebuilds it with two-space indentation, one element per line, attributes kept with their element, and empty elements written in tidy self-closing form.

Formatting never changes the meaning of the document: same elements, same attributes, same text, just readable. Everything runs locally in your browser and nothing is uploaded, which makes it safe for internal files and private feeds.

How to use

  1. Paste your XML into the box.
  2. Click Format XML.
  3. If the XML is valid, review the indented result below.
  4. Copy the formatted output for your project.
  5. If an error appears, fix the reported tag problem and format again.

Frequently asked questions

Does formatting change my XML data?

No. Only whitespace between and around elements changes. Element names, attributes, order, and text content stay exactly as parsed.

Why did my XML fail to format?

Common causes are unclosed tags, mismatched closing tags, unescaped ampersands, and multiple root elements. The error message shown comes from the browser parser and usually points at the problem.

What happens to comments in the XML?

This formatter focuses on elements, attributes, and text. Standalone comments are not reproduced in the output, which keeps the result clean; keep an original copy if comments matter to you.

Is my document uploaded?

Never. Parsing and formatting happen entirely in your browser.