XML Formatter & Validator
Format and validate XML instantly. Paste your XML code below to check for errors and beautify the structure.
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Format and validate your XML code instantly with FreeToolConvert’s Free Online XML Formatter / Validator. Our advanced tool helps developers beautify XML code, fix indentation, and validate XML syntax online for free. With FreeToolConvert, you can easily check for XML errors, ensure proper tag nesting, and make your data readable and well-structured — all in just a few seconds. Whether you’re working with APIs, data files, or configuration documents, our XML Formatter & Validator Tool ensures your XML is accurate, clean, and properly formatted. No installation or registration required — simply paste your XML code, click validate or format, and get instant, error-free output. Simplify your workflow with FreeToolConvert’s XML Formatter & Validator, your reliable tool for quick and secure XML processing.

Fast & Easy XML Formatter & Validator
Paste or upload your XML file into the toolbox to instantly format, beautify, and validate it. Clean messy XML, fix indentation, and detect errors within seconds — ideal for developers, data engineers, and API users.

Format & Validate XML With Complete Precision
Our XML Formatter organizes your XML with consistent indentation, spacing, and structure for maximum readability. The Validator scans your XML for syntax errors, mismatched tags, missing brackets, and structural issues — giving you accurate, real-time feedback to fix your XML quickly. .

File Protection Guaranteed
Your XML content is protected with advanced TLS encryption throughout the entire process. After formatting or validating your file, all data is automatically deleted from our servers within one hour to ensure complete privacy and security.
Format XML Online — No Software Needed
The tool runs entirely in your browser, so you can format and validate XML on Windows, macOS, Linux, or mobile devices. No installation or plugins required — simply paste, process, and copy your clean XML instantly.
Upload or Paste XML Instantly
You can format or validate XML by:
• Pasting raw XML text
• Uploading an .xml file
• Dropping large structured data
Perfect for debugging, editing, or preparing data for apps and APIs.
Perfect for Developers, Analysts & Integrators
Use the XML Formatter & Validator for:
• Checking malformed XML
• Formatting code for readability
• Debugging API responses
• Cleaning large or minified XML
• Preparing data for integration
• Understanding complex nested structures
Your formatted XML is clean, readable, and ready for use anywhere.
Process XML in the Cloud
All formatting and validation tasks run securely in the cloud — meaning zero CPU usage on your device. No lag, no resource drain — just fast, reliable XML processing from any browser.
How To Format & Validate XML Online
- Paste or upload your XML data.
- Click Format to beautify your XML.
- Click Validate to check for errors.
Copy or download your clean output — done!
XML Formatter & Validator FAQs
Yes — including unclosed tags, mismatched nodes, missing quotes, and structural issues.
Yes — the tool supports large, deeply nested XML documents.
Absolutely — it only cleans formatting and highlights errors without modifying your data.
Yes — it works in any modern browser without installation.
Yes — it works in any modern browser without installation.
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Yes! Format and validate unlimited XML files at no cost.