XML Formatter

This XML Formatter tool helps you beautify and format XML data with proper indentation and structure. It makes XML code more readable and easier to understand by organizing elements hierarchically.

How to use: Paste your XML code below, select formatting options, and click “Format XML” to beautify or “Minify” to compress. Errors will be shown if XML is invalid.

Paste your XML code:

<div class="indent-option">
        <label for="indentSize">Indent Size:</label>
        <select id="indentSize" class="form-control">
          <option value="2">2 spaces</option>
          <option value="4" selected>4 spaces</option>
          <option value="8">8 spaces</option>
          <option value="tab">Tab</option>
        </select>
      </div>

<div class="indent-option">
        <label for="newlineOption">Newline:</label>
        <select id="newlineOption" class="form-control">
          <option value="lf" selected>LF (Unix)</option>
          <option value="crlf">CRLF (Windows)</option>
        </select>
      </div>
    </div>

<div>
      <button id="formatBtn" class="btn-format">Format XML</button>
      <button id="minifyBtn" class="btn-minify">Minify XML</button>
    </div>
  </div>

<div id="resultContainer" class="result-container">
    <div id="validationResult"></div>
    <div id="codeOutput" class="code-output"></div>
    <button id="copyBtn" class="copy-btn">Copy to Clipboard</button>
  </div>

const formatBtn = container.querySelector('#formatBtn');
      const minifyBtn = container.querySelector('#minifyBtn');
      const copyBtn = container.querySelector('#copyBtn');
      const xmlInput = container.querySelector('#xmlInput');
      const validationResult = container.querySelector('#validationResult');
      const codeOutput = container.querySelector('#codeOutput');
      const resultContainer = container.querySelector('#resultContainer');

formatBtn.addEventListener('click', () => processXml(false));
      minifyBtn.addEventListener('click', () => processXml(true));
      copyBtn.addEventListener('click', copyToClipboard);

function processXml(minify) {
        const xml = xmlInput.value.trim();
        if (!xml) {
          alert('Please enter some XML code');
          return;
        }
        clearResults();

try {
          const parser = new DOMParser();
          const xmlDoc = parser.parseFromString(xml, 'text/xml');
          const parseError = xmlDoc.getElementsByTagName('parsererror');

if (parseError.length) {
            throw new Error(parseError[0].textContent);
          }

const indentSize = container.querySelector('#indentSize').value;
          const newlineOption = container.querySelector('#newlineOption').value;

let formattedXml;
          if (minify) {
            formattedXml = minifyXml(xml);
          } else {
            let indent = indentSize === 'tab' ? '\t' : ' '.repeat(parseInt(indentSize));
            let newline = newlineOption === 'crlf' ? '\r\n' : '\n';
            formattedXml = formatXml(xml, indent, newline);
          }

validationResult.className = 'validation-result validation-success';
          validationResult.innerHTML = '<strong>Valid XML!</strong> Your XML is correctly formatted.';

codeOutput.innerHTML = highlightXml(escapeHtml(formattedXml));
          resultContainer.style.display = 'block';
        } catch (err) {
          validationResult.className = 'validation-result validation-error';
          validationResult.innerHTML = `<strong>Invalid XML:</strong> ${err.message}`;
          codeOutput.textContent = xml;
          resultContainer.style.display = 'block';
        }
      }

function formatXml(xml, indent, newline) {
        let formatted = xml.replace(/>\s*</g, '><');
        let indentLevel = 0;
        let result = '';
        let inTag = false;
        let inComment = false;
        let inCDATA = false;

for (let i = 0; i < formatted.length; i++) {
          const char = formatted.charAt(i);

if (inComment) {
            result += char;
            if (i > 1 && char === '>' && formatted.charAt(i - 1) === '-' && formatted.charAt(i - 2) === '-') {
              inComment = false;
              result += newline;
            }
            continue;
          }

if (inCDATA) {
            result += char;
            if (i > 2 && char === '>' && formatted.charAt(i - 1) === ']' && formatted.charAt(i - 2) === ']') {
              inCDATA = false;
            }
            continue;
          }

if (i < formatted.length - 3 && char === '<' && formatted.charAt(i + 1) === '!' &&
              formatted.charAt(i + 2) === '-' && formatted.charAt(i + 3) === '-') {
            inComment = true;
            result += newline + indent.repeat(indentLevel) + char;
            continue;
          }

if (i < formatted.length - 8 && char === '<' && formatted.charAt(i + 1) === '!' &&
              formatted.substring(i + 2, i + 9) === '[CDATA[') {
            inCDATA = true;
            result += char;
            continue;
          }

if (char === '<' && formatted.charAt(i + 1) !== '/') {
            result += newline + indent.repeat(indentLevel) + char;
            indentLevel++;
            inTag = true;
          } else if (char === '<' && formatted.charAt(i + 1) === '/') {
            indentLevel--;
            if (!inTag) {
              result += newline + indent.repeat(indentLevel);
            }
            result += char;
            inTag = true;
          } else if (char === '>') {
            result += char;
            inTag = false;
          } else {
            result += char;
          }
        }
        return result.trim();
      }

function minifyXml(xml) {
        let minified = xml.replace(//g, '');
        minified = minified.replace(/>\s*</g, '><');
        minified = minified.replace(/^\s+|\s+$/gm, '');
        minified = minified.replace(/\s*=\s*/g, '=');
        return minified;
      }

function highlightXml(xml) {
        let highlighted = xml.replace(/(<\/?)([a-zA-Z0-9:_.-]+)(?=[^>]*>)/g, '$1<span class="xml-tag">$2</span>');
        highlighted = highlighted.replace(/\s([a-zA-Z0-9:_.-]+)=("|')([^"']*?)(\2)/g, ' <span class="xml-attr-name">$1</span>=<span class="xml-attr-value">$2$3$4</span>');
        highlighted = highlighted.replace(/(<!--)([\s\S]*?)(--)>/g, '<span class="xml-comment">$1$2$3></span>');
        highlighted = highlighted.replace(/(<!\[CDATA\[)([\s\S]*?)(\]\])>/g, '<span class="xml-cdata">$1$2$3></span>');
        return highlighted;
      }

function escapeHtml(unsafe) {
        return unsafe.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">").replace(/"/g, """).replace(/'/g, "'");
      }

function clearResults() {
        validationResult.textContent = '';
        codeOutput.textContent = '';
        resultContainer.style.display = 'none';
      }
    })();
  </script>
</div>

<p class="gb-text"><strong> Title:</strong> Free XML Formatter: Clean Up & Check Your XML Online<br><strong>Meta Description:</strong> Tidy and check your XML code fast with our free online tool. Get easy-to-read code with proper spacing.<br><strong>Intro</strong><br>Is messy XML code driving you nuts? It’s hard to read, fix, and keep up-to-date. An XML Formatter is a super handy tool that takes your messy code and turns it into something clean and easy to read. It fixes the spacing, adds line breaks, and makes sure everything looks right. This guide will show you how to use it to make your life easier and your XML perfect.<br><strong>What’s an XML Formatter?</strong><br>An XML Formatter tidies up XML code so it looks better. It reads your code, figures out the structure, and then fixes the formatting. It adds spaces and new lines so you can see how everything fits together. It also checks for basic mistakes which helps you spot problems. The result is a document that’s easy to read and understand.<br><strong>Why Bother Formatting XML?</strong><br>Good-looking XML is key for coders, testers, and teams. It makes code way easier to read, so you can find things fast. Spaces help you see the structure of the data, saving you time. It also makes it easier to find and fix mistakes, like missing brackets.<br>Clean XML is easier to check and share with others. Plus, it helps you remember what’s going on later because the structure is clear. It’s just the right thing to do.<br><strong>What to Look for in an XML Formatter</strong><br>The best XML Formatter does more than just add spaces. It turns a pain into something quick and easy. Our tool has the important stuff you need.<br><strong>Smart Spacing:</strong> Puts spaces in the right places so you can see the structure.<br><strong>Syntax Check:</strong> Looks for mistakes like missing brackets while it formats.<br><strong>Line Breaks:</strong> Adds new lines between things so it’s clear.<br><strong>Attribute Alignment:</strong> Lines up attributes to improve reading.<br><strong>Make it Small:</strong> Option to remove extra spaces for smaller files.<br><strong>How to Use Our XML Formatter</strong><br>Our XML Formatter is simple to use. You don’t need to install anything or mess with settings. It works on any device with a browser. It’s easy to use and gives you great results, even with big files.<br><strong>Paste Your XML:</strong> Put your messy XML code into the tool.<br><strong>Format It:</strong> Click the button to format your XML fast.<br><strong>Copy and Go:</strong> Look at the nice-looking code and copy it.<br><strong>When Would You Use an XML Formatter?</strong><br>This tool is used in many tech jobs. Coders use it to clean up files and data. Data workers format XML to make it readable for reports.<br><strong>API Work:</strong> Format XML from websites to make it easier to find errors and write documentation.<br><strong>Moving Data:</strong> Clean up XML before putting it into new systems.<br><strong>Settings:</strong> Organize settings files for programs and servers.<br><strong>Code Check:</strong> Get XML ready for others to look at by making it easy to read.<br><strong>Learning:</strong> Help students understand XML with clear formatting.<br><strong>Formatting vs. Checking</strong><br>Formatting and checking are alike, but they do different things. Formatting makes the XML look good without changing the details. It changes spaces and line breaks so people can read it.<br>Checking makes sure the XML follows the proper rules. A good formatter will find some simple errors, but for deep checking, you need special tools. Our formatter checks basic syntax while formatting.<br><strong>Questions People Ask</strong><br><strong>Q: Does formatting change my XML data?</strong><br>A: Nope. It only changes spaces between things. Your data stays the same.<br><strong>Q: Can I format big XML files?</strong><br>A: Our tool can handle normal-sized XML files. For really big files (over 10MB), you might need special software.<br><strong>Q: What if my XML has errors?</strong><br>A: Our formatter will find common errors like missing brackets and tell you about them; it might stop formatting until you fix them.<br><strong>Q: Is my XML safe when I paste it in?</strong><br>A: Yes, it stays safe in your browser. We don’t save or send your data.<br><strong>Q: Can I turn XML into JSON with this?</strong><br>A: No, this only formats XML. You need a special tool to turn XML into JSON.<br><strong>In Conclusion</strong><br>Messy XML is a waste of time and can cause mistakes. An XML Formatter instantly makes your code better, so it’s clear and easy to maintain. It’s a must-have for anyone working with XML. <strong>Stop fighting with bad code and use our free XML Formatter above to make your XML readable in seconds!</strong></p>
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