XML Formatter & Validator
Format, validate, minify, and convert XML with namespace-aware parsing, attribute sorting, JSON export, and instant error diagnostics — purpose-built for SOAP, RSS, and config workflows.
How It Works
Input XML Data
Paste XML content, upload XML files, or drag and drop your XML data into our online XML formatter. Support for large XML files, SOAP envelopes, RSS feeds, configuration files, and all XML-based formats. Our XML parser instantly validates syntax and detects common XML errors.
Configure XML Formatting Options
Customize XML indentation (2, 4 spaces or tabs), sort attributes alphabetically, remove comments and empty nodes, handle self-closing tags, and choose between formatting, validation, or minification modes. Advanced XML beautifier options for professional XML processing.
Format and Validate XML
Click 'Format XML' to beautify and validate your XML data. Our XML formatter processes data locally in your browser with no server uploads. Get detailed error messages for invalid XML syntax, unclosed tags, and malformed structures with precise line numbers.
Export or Convert XML Results
Download formatted XML files, copy to clipboard, or convert XML to JSON format. Export minified XML for production use or pretty-printed XML for debugging. Share formatted XML documents or open in new window for enhanced productivity.
Problems It Solves
Problem
Compressed or single-line XML is difficult to audit, which slows debugging, code reviews, and incident response when APIs or integrations misbehave.
Solution
Instantly beautify XML with consistent indentation, optional attribute sorting, and whitespace normalization so complex SOAP or RSS payloads become readable at a glance.
Problem
Malformed XML can take hours to track down when parsers only report generic errors without line numbers or context.
Solution
The validator highlights unclosed tags, namespace issues, and attribute mistakes with precise line and column detail, making it easy to pinpoint and resolve schema violations.
Problem
Teams frequently need JSON versions of XML payloads for front-end tooling, API testing, or documentation but lack a reliable converter.
Solution
Use the convert-to-JSON mode to produce clean JSON representations of XML structures, ready for mock APIs, diffing, or data exchange pipelines without external dependencies.
Why Choose This Tool
Client-Side Security
Process sensitive configuration files and SOAP payloads entirely in your browser—no uploads, no retention, and instant deletion as you navigate away.
Modes for Every Workflow
Switch between format, validate, minify, and XML→JSON conversion without leaving the page. Each mode includes tailored metadata to speed up QA and release reviews.
Enterprise-Ready Diagnostics
Namespace detection, comment removal, empty-node cleanup, and attribute control help you deliver standards-compliant XML for enterprise integrations and legacy platforms.
Productivity-Focused UI
Drag-and-drop files, copy formatted results, download outputs, and revisit previous runs via tool history to streamline repetitive XML chores.
Frequently Asked Questions
What is XML?
What's the difference between XML and HTML?
How do I handle special characters in XML?
Can XML contain comments?
What are XML namespaces?
Related Tools
Format, validate, and beautify JSON/JSONC with key sorting, inline arrays, duplicate key detection, and rich error details—all locally.
Format, validate, and convert YAML data with syntax checking, JSON conversion, and beautification options.
Format HTML code with prettier-style beautification online. Free HTML formatter with intelligent indentation, attribute sorting, validation, and minification — all in your browser.
Encode, decode, and inspect Base64 payloads with URL-safe mode, line-break control, drag-and-drop input, and instant validation — all in your browser.