XML Formatter & Validator
Validate, format, and minify XML data online. Upload or paste XML, get instant error reporting with line numbers, and download the corrected file.
Input XML
Drop XML file here
or click to browse
.xml · Max 100 MB
Frequently Asked Questions
Is my XML data safe?
Yes. All data is processed securely in memory and never stored on the server. Your XML content is never logged or persisted.
How does real-time validation work?
The editor uses your browser's built-in DOMParser to detect XML syntax errors as you type. Errors are highlighted with line and column information after a 500ms debounce.
Can I upload large XML files?
Yes, the tool supports XML files up to 100MB. The editor will load the content and you can validate and format it instantly.
What does Format do?
Format (Pretty Print) converts your XML into a human-readable structure with proper indentation and line breaks. You can choose 2-space, 4-space, or tab indentation.
Can I download the formatted XML?
Yes. Once the XML is valid, click the Download button to save it as a .xml file.