XML Formatter & Validator

XML formatter online to format, validate, and minify XML in your browser. Get clean indentation and fast syntax checks for configuration files, feeds, and APIs.

Formatting options
Minify removes whitespace-only nodes; format reflows with indentation.

About this tool

Use the formatter to make XML readable and consistent, or minify to reduce size. The validator highlights syntax errors quickly, without sending data to any server.

Frequently asked questions

Does this tool run in the browser?
Yes. XML formatting and validation happen client-side so your data stays local.
Can I minify XML safely?
Yes for valid XML. Minify removes whitespace-only text nodes. Always test if your XML depends on significant whitespace.
Does it support XML declarations?
Yes. Declarations are preserved when formatting and minifying.
Will it validate against a schema?
No. This tool checks XML syntax only, not XSD/DTD schema validation.

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Added Feb 4, 2026

🔄 Workflow Suggestion

Try combining multiple tools for a complete workflow. For example: Notepad → Text Encryption → Save to Cloud or Date Calculator → Calendar → Countdown Timer

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