XML Formatter

🧾 Format XML Online | Newtum XML Formatter & Validator

✅ Beautify, Validate, and Fix XML Instantly — In Your Browser. Newtum’s Online XML Formatter & Validator helps you quickly reformat messy, minified, or unreadable XML into a clean, human-readable structure. It also validates your XML for errors, highlights problem areas, and offers real-time error descriptions—all within a secure, browser-based interface.

Whether you're working with API responses, configuration files, or complex data structures, this tool helps you maintain clean, compliant XML — with no software installation required.

🚀 Why Format and Validate XML?

While XML is a readable format by nature, many systems minify XML files before transferring them to reduce bandwidth usage. This leads to compressed, single-line XML that's difficult to interpret.

Here’s why formatting and validation are essential:

• ✅ Improve readability for debugging or editing
• ❌ Catch errors like missing closing tags, unescaped characters, or improper nesting
• 🧪 Ensure compatibility with parsers and APIs
• 🔁 Prevent application crashes due to malformed XML
• 🧘‍♂️ Save time vs. manual formatting or debugging

Using an online tool like Newtum eliminates the hassle and risk of breaking your XML manually.

🔧 How to Format XML Online?

Using the Newtum Online XML Formatter is easy:

1. Paste or upload your XML in the Source XML field
2. Click Format XML
3. View the beautified version in the Formatted XML section
4. If errors are present, they'll be highlighted with line numbers and accompanied by a clear explanation

💡You can also toggle between Light and Dark themes for a better editing experience.

🌐 Why Use Newtum to Format XML?

• 🔒 No data leaves your browser — 100% client-side processing
• 🖍️ Syntax highlighting for improved code comprehension
• 🚫 No downloads, installations, or plugins required
• 💬 Clear error feedback for faster troubleshooting
• 📂 Upload XML files directly from your computer
• 🔗 Share XML snippets via unique URLs
• 🌍 Cross-platform compatibility — works on any device
• 🎓 Sample XML data included for beginners

Everything you need to inspect, correct, and share XML — in one tool.

✨ Features of Newtum XML Formatter & Validator

• 📄 Convert single-line or malformed XML into clean, indented structure
• 🧹 Detect and explain XML syntax errors
• 🔄 Upload and download XML files
• 🔐 Local-only processing ensures data privacy
• 🖱 One-click formatting, validation, and resetting
• 🌈 Theme toggle (light/dark)
• 💾 Save and manage XML projects
• 💡 Get started with sample XML templates

🔍 XML Formatter Example

<Order><Id>78912</Id><Customer>Jason Sweet</Customer><Quantity>1</Quantity><Price>18.00</Price></Order>

<Order>
    <Id>78912</Id>
    <Customer>Jason Sweet</Customer>
    <Quantity>1</Quantity>
    <Price>18.00</Price>
</Order>

🛠 XML Syntax Rules to Remember

Understanding XML syntax is key to writing and validating it correctly. Here are the basics:

• XML must have a single root element
• All tags must be properly closed
• Nesting must be correct
• Tags are case-sensitive
• Attribute values must be enclosed in quotes
• Reserved characters like <, >, &, ", and ' must be escaped
• Comments are allowed using <!-- comment -->
• No trailing commas or undefined tags

🧩 Also Need to Format JSON?

Check out the Newtum Online JSON Formatter — a powerful tool with the same user-friendly features built for JSON formatting and validation.