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XML Formatter & Validator

Format, minify & validate XML

Free forever — no sign-up, nothing uploaded. Files never leave your device.

braincoder.app/use/xml-formatter

XML Formatter & Validator

Format, minify & validate XML

Drop your file here

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Browse files

document.pdf

1.2 MB

report.pdf

860 KB

100% private

Nothing is uploaded — everything runs in your browser.

Free forever

No account or payment required.

No sign-up

Open the tool and start using it right away.

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. 1

    Paste XML Content

    Insert your raw, minified, or malformed XML into the editor area.

  2. 2

    Configure Formatting

    Set your preferred indentation width (spaces or tabs), and whether to preserve or strip comments.

  3. 3

    Format or Validate

    Click format to beautify the XML. If there's a parse error, the tool highlights the exact position.

  4. 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 & Validator

Frequently asked questions

Quick answers before you launch the tool.