XML Formatter & Validator
Format, minify & validate XML
Free forever — no sign-up, nothing uploaded. Files never leave your device.
XML Formatter & Validator
Format, minify & validate XML
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Browse filesdocument.pdf
1.2 MB
report.pdf
860 KB
100% private
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Local processing
Processing time depends on your input and device.
About this tool
Beautify or minify XML with live validation and clear errors on malformed markup.
The XML Formatter transforms unstructured, minified, or inconsistently indented XML documents into clean, properly structured, human-readable markup. Whether you're working with SOAP responses, SVG files, configuration manifests (Maven pom.xml, Android layouts), or data interchange feeds, this tool applies consistent indentation, corrects self-closing tags, and normalizes attribute formatting for maximum readability.
The formatter handles all XML constructs correctly: processing instructions, CDATA sections, namespaces with prefix declarations, comments, and mixed content nodes. It validates the XML structure simultaneously, catching unclosed tags, mismatched namespace prefixes, and malformed entities with precise error reporting that pinpoints the exact location of the issue.
XML documents frequently contain business-critical data, internal system identifiers, and proprietary schemas. This tool processes everything in the browser with zero network transmission, ensuring your XML content remains private and secure at all times.
Key features
Everything you get with XML Formatter & Validator — no premium upsell.
Configurable indentation (tabs or 2/4/8-space widths)
Proper handling of namespaces, CDATA, processing instructions, and comments
Self-closing tag normalization and attribute formatting
Real-time XML validation with precise error location reporting
Minification mode for producing compact XML output
Full client-side processing — XML content never leaves your browser
How to use XML Formatter & Validator
Follow the steps below to use the tool.
- 1
Paste XML Content
Insert your raw, minified, or malformed XML into the editor area.
- 2
Configure Formatting
Set your preferred indentation width (spaces or tabs), and whether to preserve or strip comments.
- 3
Format or Validate
Click format to beautify the XML. If there's a parse error, the tool highlights the exact position.
- 4
Copy or Download
Copy the formatted XML to clipboard or download it as a properly encoded .xml file.
Still free, still private — your files never leave your device.
Launch XML Formatter & ValidatorFrequently asked questions
Quick answers before you launch the tool.
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