XML Pretty Print

Free Online XML Pretty Print

This page provides six browser-based XML utilities accessible from the left sidebar. Every tool runs entirely in your browser using the built-in DOMParser. No data is uploaded, no account is required, and nothing is stored. Select a tool, paste your XML or upload an .xml file, and the output appears immediately. All tools support drag-and-drop file upload for quick processing.

Online XML Pretty Print with Formatting Rules

API responses, SOAP envelopes, configuration files, and data feeds are often delivered as compact single-line XML that is difficult to read or debug. The XML pretty print tool on this page takes that compressed input and restructures it with your chosen indent size. Select 2 spaces, 4 spaces, or a real tab character from the toolbar dropdown. The output updates automatically as you type, so you see the pretty printed result immediately without pressing any button.

Toggleable Formatting Rules

Three formatting rule chips in the rules bar give you fine-grained control over the pretty print output. The Add Declaration rule inserts a standard XML declaration at the top of the document if one is not already present. The Collapse Empty rule converts empty elements like <tag></tag> into self-closing <tag/> form. The Normalize Whitespace rule cleans up runs of spaces, tabs, and line breaks inside text nodes. Each rule is toggled independently by clicking its chip, which lights up amber when active.

Live Line Metrics

The metrics bar below the formatting rules shows a live summary of the XML document. It displays the total tag count, total attribute count, maximum nesting depth, input line count versus output line count, and input file size versus output file size. This gives you immediate quantified feedback on the structure and size of your document as you type or upload a file.

XML Lint and XML Sort Tools

The XML Lint tool goes beyond basic well-formedness checking to identify style and maintainability issues in your XML. It flags empty elements that have no attributes or content, elements with mixed content (text and child elements together), structures nested more than 10 levels deep, lines that exceed 200 characters, and mixed indentation styles (tabs and spaces together). Each issue is reported with a clear description and the document summary includes tag count, attribute count, max depth, and line count.

Sorting XML Elements for Consistency

The XML Sort tool reorders all child elements at every nesting level alphabetically by tag name. Attributes on each element are also sorted alphabetically by attribute name. Text content and all data values are preserved. This produces a canonical XML representation that is useful for creating clean diffs in version control, comparing documents generated by different serializers, and standardizing configuration files across environments.

Free XML Pretty Print with File Upload

All tools on this page support drag-and-drop file upload. Drag an .xml, .xsl, .xsd, .svg, .rss, or .atom file onto the input panel, or click the Upload XML button in the toolbar to browse for a file. The file content is loaded into the editor and processed immediately. Because all processing is local, even large XML files are handled quickly without network delay. Output can be copied to the clipboard with one click or downloaded as a file.

XML Minify for Production Payloads

The XML Minify tool removes all whitespace between tags and strips comments to produce the smallest valid XML string. This is useful for reducing payload size in REST and SOAP API responses, embedding XML in build artifacts, and storing XML in databases where size matters. The metrics bar shows both input and output sizes so you can see the exact reduction. To reverse minification, paste the result into the XML Pretty Print tool.

XML to JSON Converter and XML Encode

The XML to JSON converter takes a well-formed XML document and produces a structured JSON object. Element names become object keys, text content becomes string values, child elements become nested objects, repeated sibling elements with the same tag name become JSON arrays, and attributes are grouped under an @attributes key. This is useful when migrating data from XML-based systems to JSON-based APIs or when you need to process XML data in JavaScript without an XML parser.

Encoding Text for Safe XML Embedding

The XML Encode tool converts the five XML reserved characters to their entity references: ampersand becomes &amp;, less-than becomes &lt;, greater-than becomes &gt;, double quote becomes &quot;, and apostrophe becomes &apos;. Use this when embedding user-supplied text in XML configuration files, inserting URLs with ampersands as query separators, placing code snippets in XML data fields, or preparing content for SOAP envelopes, RSS feeds, SVG files, or Android resource strings.

Privacy and Browser-Only Processing

Because all processing happens locally in your browser, your XML never leaves your device. This makes these tools safe to use with production configuration files, proprietary data formats, and XML that contains sensitive information. No data is transmitted to any server, no cookies are set, and no account or signup is required.

Related Online XML and Developer Tools

If you work with XML regularly, these other free tools on the site complement this page:

• XML Formatter -- format, minify, validate, convert XML to JSON, and escape XML strings
• XML Beautifier -- beautify XML with tree view, configurable indent, and attribute sorting
• XPath Tester -- test XPath expressions against XML documents with instant results
• JSON Formatter -- format, validate, minify, and convert JSON to other formats
• Code Formatter -- format HTML, CSS, JSON, XML, and JavaScript in one tool
• HTML Pretty Print -- pretty print, compact, lint, and transform HTML code
• CSV to JSON -- convert CSV data to JSON format instantly