Free XML Beautifier Online — Pretty Print XML
Beautify and pretty-print XML with customizable indent size — free, browser-only, no upload needed.
Input
Beautified Output
XML Beautifier Examples
Minified XML is hard to read; beautification adds indentation. Example:
Minified input vs beautified output
Minified input:
Beautified output:
Use Sample above to load more example data. Adjust Indent Size to change formatting.
What Is an XML Beautifier?
XML uses tags to structure data. Minified or poorly indented XML—often a single line from APIs or config exports—is hard to read. An XML Beautifier adds indentation and line breaks so you can see the hierarchy. Unlike a basic formatter, this tool lets you set the indent size (1–8 spaces) to match your project's style. The W3C XML specification defines the syntax.
The re-indenting is done by the DOMParser built into the browser, which means the markup never has to leave your laptop. A production SOAP envelope or a config file with credentials in it is fine to drop in.
How to Use This Tool
Paste or Upload XML
Put the cramped XML in the left pane, either by pasting it or by choosing a .xml file with Upload. Set Indent Size (1–8 spaces) in the options bar to match your preferred style. The Sample button loads example data if you want to test things out.
View Beautified Output
The right panel shows the indented XML. Invalid XML will show an error—fix it first using the XML Validator. For extracting specific values from large XML, the XPath tool works well alongside this.
Copy or Download
Take the indented document with Copy, or save it to disk with Download. Need it squeezed back down onto one line? Use XML Minifier. For converting to JSON, use XML to JSON.
When XML Beautification Helps
SOAP and REST APIs often return XML as a single compressed line. Pasting the response here makes nested elements visible. Config files like pom.xml or web.config with inconsistent indentation are hard to review—beautifying gives you a consistent layout. For RSS or Atom feeds that fail validation, formatting here helps you spot the exact error.
Frequently Asked Questions
Beautifier vs Formatter?
Both indent XML. The Beautifier lets you choose indent size (1–8 spaces); the Formatter uses a fixed default. Functionally similar—pick the one that matches your workflow.
Is my data private?
Yes. Each beautify is a DOMParser pass plus some string work inside this tab, and no copy of the document goes to a server. With DevTools open on the Network tab you can watch a beautify happen without a single request.
What about XML namespaces?
Namespace declarations and prefixes are preserved. The beautifier only changes whitespace, not structure or content.
Is there a file size limit for beautification?
No server-side limits exist — beautification runs entirely in your browser. Typical XML files including large SOAP responses and data exports process instantly.
Related Tools
For XML, see the W3C XML spec, W3C XML, and MDN DOMParser. For JSON, see json.org. For XPath, see XPath 3.1. For HTML, see HTML spec.