Interactive XML Formatter, Minifier & Syntax Validator
Format, prettify, minify, and validate XML documents with real-time DOM parser validation.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. No data is ever transmitted across the network.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
How to Use Interactive XML Formatter, Minifier & Syntax Validator
Paste your raw XML feed, RSS document, or SOAP message into the input field.
Select 2 spaces or 4 spaces to automatically format and indent your markup.
Copy the cleaned XML to your clipboard or download it as a .xml file.
Frequently Asked Questions
How does the XML validator detect errors?
It runs your XML through the browser's native DOMParser in text/xml mode to identify malformed tags, unclosed nodes, or attribute syntax errors.
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