XML Formatter & Validator
Format, beautify, validate, and minify XML documents instantly in your browser. Uses the native DOMParser for accurate validation with precise error line numbers. No data leaves your device — free, private, and no account required.
How to Use the XML Formatter & Validator
- 1
Paste your XML
Paste your raw or unformatted XML into the input area.
- 2
Click Format or Validate
Click "Format" to produce an indented, readable version, or "Validate" to check for syntax errors.
- 3
Review any errors
If your XML is malformed, an error message appears with the exact line and column number of the problem.
- 4
Copy the output
Click "Copy" to copy the formatted or minified output to your clipboard.
Key Features
Accurate Validation
Uses the browser's native DOMParser — validation results match what a real browser XML parser reports.
Error Line Numbers
Syntax errors are reported with exact line and column numbers for fast debugging.
Private
Confidential configuration files and internal API payloads never leave your browser.
Pro Tips
XML is case-sensitive — <Item> and <item> are different elements. A common mistake is mixing case in opening and closing tags.
Every XML document must have exactly one root element — multiple top-level elements will fail validation.
For SOAP APIs and legacy enterprise systems, proper XML formatting is essential — use this tool to verify payloads before sending.
Privacy Note
All processing in this tool runs entirely in your browser — no data is transmitted to any server. Your input is never logged, stored, or shared. This tool is free to use with no account or registration required.
Frequently Asked Questions
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Your input is processed locally in your browser and is never stored, transmitted, or shared with any server. See our Privacy Policy.