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  1. Home
  2. Document & Text
  3. XML Formatter & Tools
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Format, validate, and convert between YAML and JSON formats. Live validation, syntax highlighting, and bidirectional conversion.

Code Minifier & Beautifier

Minify or beautify code in 7 languages: JavaScript, TypeScript, CSS, HTML, JSON, XML, SQL with compression visualization

What is XML Formatter & Tools?

Got a wall of unformatted XML? Paste it here and get a properly indented, syntax-highlighted version. The formatter validates well-formedness and flags errors so you can fix broken tags or mismatched nesting before they cause problems downstream.

Quick Start Guide

  1. 1Paste raw or minified XML into the editor
  2. 2The formatter validates and indents it automatically
  3. 3Review any error messages for malformed elements
  4. 4Copy or download the formatted output

Capabilities

  • Automatic indentation and pretty-printing
  • Well-formedness validation with error locations
  • Syntax highlighting for tags, attributes, and values
  • CDATA and namespace support
  • Configurable indentation depth
  • Minify option to compress XML

Who Uses This

  • Reading API responses

    Format SOAP or REST XML responses into readable structures for debugging and data inspection.

  • Editing configuration files

    Clean up XML config files (Maven pom.xml, Spring beans, Android manifests) for easier reading and editing.

  • Validating data feeds

    Check XML data feeds for well-formedness issues before processing them in ETL pipelines.

Under the Hood

The formatter parses your XML into a tree, validates structural correctness, and re-serializes it with consistent indentation. Attributes are preserved in their original order, CDATA sections and processing instructions are handled correctly, and namespace prefixes remain intact. You can adjust indentation depth and choose whether to collapse empty elements into self-closing tags.

Frequently Asked Questions

Does this validate against an XSD schema?

No — it checks well-formedness (proper nesting, matching tags, valid characters) but does not validate against XSD or DTD schemas.

Are namespaces preserved?

Yes. Namespace declarations and prefixed elements are preserved exactly as they appear in the input.

Can it handle very large XML files?

It works well for files up to a few megabytes. For very large files, browser memory may become a limiting factor.

Privacy First

All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.