Array Formatter

Format and convert arrays between JSON, CSV, PHP, and Python formats with syntax highlighting and validation.

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8,156+

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 Array 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 Array Formatter Online tool helps developers and data analysts quickly format, validate, and convert arrays between different programming languages and data formats. Simply paste your array (in any supported format), choose your desired output format, and get a beautifully formatted result with syntax highlighting. The tool supports JSON arrays, CSV data, PHP arrays, and Python lists, with automatic validation to catch syntax errors. Perfect for debugging, data migration, or preparing arrays for different programming environments.

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How to Use

Paste your array into the input textarea (supports JSON, CSV, PHP, or Python formats)
Select your input format from the dropdown (or let the tool auto-detect)
Choose your desired output format (JSON, CSV, PHP array, or Python list)
Click 'Format Array' to process and view the formatted result
Use 'Copy to Clipboard' to easily copy the formatted output
Use 'Clear All' to reset the tool and start fresh

Frequently Asked Questions

Find Quick Answers

What array formats does this tool support?

The tool supports JSON arrays (e.g., [1, 2, 3]), CSV data (comma-separated values), PHP arrays (e.g., array(1, 2, 3) or [1, 2, 3]), and Python lists (e.g., [1, 2, 3]). It can auto-detect the format in most cases.

Does the tool validate array syntax?

Yes, the tool validates the input array syntax and provides specific error messages if there are issues like missing brackets, invalid characters, or format mismatches.

Can I format nested/multi-dimensional arrays?

Yes, the tool supports nested arrays in all formats. For example, JSON arrays like [[1, 2], [3, 4]] or PHP arrays with multiple dimensions.

Is there a limit to the array size I can format?

The tool processes arrays entirely client-side, so performance depends on your browser. For very large arrays (thousands of elements), formatting may take a few seconds, but there's no hardcoded limit.

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