CDATA Formatter

A focused tool for formatting CDATA sections in XML/HTML, helping developers produce clean, consistent code blocks and preserve data content.

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1,704+

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 CDATA 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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About This Tool

The CDATA Formatter is a developer-oriented tool that formats CDATA sections within XML and HTML content to improve readability and maintainability. It accepts raw text containing CDATA blocks and outputs a consistent, properly indented representation suitable for review, diffing, and automated pipelines. The primary users are software engineers, API teams, data engineers, and QA analysts who work with XML payloads, SOAP envelopes, RSS/Atom feeds, and HTML scripts embedding literal data.
The tool parses the input, identifies CDATA boundaries, and preserves all literal characters inside the CDATA sections. It applies configurable indentation, line wrapping, and newline normalization. It can preserve or normalize entity references and handles UTF-8 and common encodings. It does not validate the entire XML/HTML document, only normalizes CDATA blocks.
Output is a clean CDATA block with consistent indentation and line breaks, ready to paste into source files or feed into pipelines. It supports multiple CDATA blocks within a single document and maintains surrounding tags unchanged. Unique value: non-destructive formatting, robust handling of nested CDATA content, and deterministic results across runs.
Typical use cases include code reviews, migration projects, API contract generation, and data migrations involving XML payloads. Workflow: supply text, configure indentation and options, run formatter, export formatted output, and integrate into CI or deployment pipelines.

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How to Use

Provide inputs: paste the raw CDATA-containing text to be formatted.
Configure options: set indentation level, newline handling, and encoding preservation.
Run formatter: apply core logic to produce formatted CDATA blocks.
Review outputs: verify CDATA boundaries, indentation, and line breaks.
Export: copy or pipe the formatted text into your codebase or tooling.

Frequently Asked Questions

Find Quick Answers

What inputs does the tool require?

The tool accepts a string containing CDATA blocks within XML/HTML content, plus optional formatting preferences such as indentation, newline style, and encoding preservation. It outputs a formatted text block and diagnostics if issues are detected.

Can it handle nested CDATA sections?

Yes. The formatter preserves the content of CDATA sections and handles adjacent or multiple CDATA blocks within a document. It does not attempt to validate the broader XML/HTML structure beyond CDATA boundaries.

Does it modify content outside CDATA?

No. Formatting changes apply only inside CDATA blocks; outside content remains unchanged except for the surrounding whitespace being preserved for readability.

What error signals are produced?

The tool may emit error codes such as E001 for unclosed CDATA blocks or E002 for unsupported encodings. These are diagnostic signals indicating formatting limitations rather than full XML validation failures.

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