XML Formatter & Validator
Format, beautify, validate and minify XML online for free. Clear syntax error messages and clean indentation, entirely in your browser.
Frequently asked questions
- Are my files uploaded to a server?
- No. This tool runs entirely in your browser using JavaScript — your files never leave your device.
- Does it validate XML?
- Yes — the tool checks well-formedness (matching tags, proper nesting, valid entities) and shows the parser's error message when something is wrong.
- Are comments and CDATA preserved?
- Yes, comments and CDATA sections survive formatting and minification unchanged.