XML Formatter

Formats XML into readable, consistent text and provides quick validation for developers, data teams, and content creators across projects.

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1,292+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how XML Formatter processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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Sobre esta herramienta

The XML Formatter accepts an XML string and returns a readable, standards-compliant XML document with user-configurable indentation. It also supports minification for compact transmission or storage. This is useful for configuration files, API payloads, and sample XML in documentation.
Conceptually, the tool parses the input, builds an in-memory representation, and emits a serialized string according to chosen options. It can preserve comments and CDATA, and apply indentation or minification as required.
Developers, data engineers, API engineers, and technical writers benefit by obtaining consistent formatting, easier review, and reliable samples for tutorials and logs. The tool reduces manual reformatting time and helps enforce coding standards across teams.
A key value is the combination of formatting, optional attribute sorting, and secure handling of content within a single workflow. Core features include pretty-printing with configurable indentation, optional minification, and robust error reporting for malformed inputs.
Common use cases include preparing configuration snippets, validating API responses, cleaning XML logs, and producing clear samples for technical documentation.

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Cómo usar

Provide inputs: Enter or paste the XML input string into the text area.
Configure options: Set indent_style (spaces or tabs), indent_size (2–
, and toggle minify, sort_attributes, preserve_comments.
Run formatting: The tool formats the XML instantly and displays formatted_xml below.
Retrieve outputs: Copy or save formatted_xml; if minification is enabled, review minified_xml as well.
Validate: If parse errors occur, review error details and correct the input before re-running.

Frequently Asked Questions

Encuentre respuestas rápidas

What XML versions are supported?

The formatter targets XML 1.0 well-formed inputs and handles typical XML structures. External entity resolution can be disabled for security, and the tool does not perform DTD fetches by default. It focuses on formatting and basic validation of well-formedness.

Can I customize indentation and minification?

Yes. You can choose indent_style (spaces or tabs) and indent_size (2–8). The minify option collapses whitespace and reduces the document to a compact single-line representation where appropriate. Attribute sorting is optional to standardize order.

How are comments and CDATA treated?

Comments and CDATA sections are preserved by default. You can enable or disable comment preservation depending on your needs. CDATA content remains intact and is not reinterpreted during formatting.

What happens with invalid XML?

Invalid XML triggers parse errors with line and column references. The tool will not produce a formatted output until the input is corrected. This helps identify specific syntax issues for quick remediation.

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