Syntax Highlighting
Color-coded XML output distinguishes tags, attributes, values, comments, CDATA sections, and processing instructions for instant readability.
Format, validate, minify, and syntax-highlight XML instantly in your browser. No uploads, no registration β fully private and lightning fast.
An XML Formatter β also called an XML Beautifier or XML Pretty Printer β is a developer utility that transforms raw, compressed, or poorly indented XML code into a clean, readable structure with consistent indentation and line breaks. XML (eXtensible Markup Language) powers data exchange between APIs, configuration files, RSS feeds, SOAP services, sitemaps, and countless enterprise systems. Unfortunately, XML produced by machines is often a single, unreadable line. Our free online XML formatter instantly beautifies that output so you can inspect, debug, and edit it effortlessly.
Beyond formatting, this tool validates XML in real time, catching unclosed tags, missing declarations, and malformed attributes before they cause runtime errors. You can choose your preferred indent size (2 spaces, 4 spaces, or tabs), minify XML to reduce payload size for APIs, or download the result as a clean .xml file. Best practices include always declaring the XML version and encoding (<?xml version="1.0" encoding="UTF-8"?>), using meaningful tag names, and validating against a schema (XSD or DTD). This tool helps you follow every one of those best practices.
A complete XML toolkit built for developers, data engineers, and QA testers.
Color-coded XML output distinguishes tags, attributes, values, comments, CDATA sections, and processing instructions for instant readability.
Detects malformed XML instantly β unclosed tags, mismatched brackets, invalid characters, missing quotes β with clear error messages.
Choose 2-space, 4-space, or tab indentation to match your team's coding style guide and keep diffs clean.
Strip all unnecessary whitespace and comments to reduce XML payload size β ideal for API responses and production deployments.
Upload any .xml file directly from your device and download the formatted result with one click.
See character count, line count, total XML nodes, and attribute count update in real time as you type or paste content.
All processing happens entirely in your browser. Your XML data is never sent to any server β perfect for confidential configs and API payloads.
Paste directly from clipboard or copy the formatted output with a single click β no keyboard shortcuts needed.
No installation, no login. Works entirely in your browser.
Paste raw XML into the input panel, upload a .xml file from your device, or click "Sample" to load an example.
Select your preferred indentation style, then click Beautify to format or Minify to compress. Hit Validate to check for errors.
Copy the formatted XML to your clipboard or download it as a .xml file β ready to use in your project.
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