Convert CSV to an Array of Arrays

Convert CSV to an Array of Arrays in seconds. Paste or upload your CSV data and get a live-updating JSON array representation ready for export or use in code.

Paste your input above or import a file below.
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Supported file types: .csv, .txt, .tsv, .log, .json, .xml, .html, .htm, .css, .ini, .yaml, .yml
Total characters: 0
Options
Trim values
Include header row
Maximize output

How to Use:

  • Paste your CSV content into the Input CSV box or import a .csv or compatible file using Choose File.
  • The converted output will appear live in the Array Output box as a structured JSON array of arrays.
  • Toggle Trim values to remove leading/trailing spaces from each cell.
  • Toggle Include header row to preserve the first row of the CSV as part of the array.
  • Toggle Maximize output to expand the output textarea for better readability.
  • The Total characters counter updates automatically with every change.
  • Use Copy Output to copy the JSON or Export to File to save it as a .json file.
  • Click Clear All to reset everything, including inputs, toggles, and preview.

What Convert CSV to an Array of Arrays can do:

This tool turns your CSV data into a clean, structured JSON array format, great for use in JavaScript or APIs. Whether you need raw data for charts, migrations, tests, or app initialization, it handles formatting automatically. You can strip whitespace, choose to include the header, and export the array with one click. All processing is done in your browser with instant feedback.

Example:

CSV Input:

Name,Age,Location
Alice,30,New York
Bob,27,London

Output with header excluded:

[
  ["Alice", "30", "New York"],
  ["Bob", "27", "London"]
]

Output with header included:

[
  ["Name", "Age", "Location"],
  ["Alice", "30", "New York"],
  ["Bob", "27", "London"]
]

Common Use Cases:

Useful for front-end developers prepping data for components, creating test fixtures, or exporting spreadsheet data for JSON-based systems. Also great for data previews, analysis setups, or feeding clean structures into NoSQL databases or scripts.

Useful Tools & Suggestions:

If you’re prepping for code, Convert CSV to JSON might work even better depending on your structure. And once it’s an array, Convert an Array of Arrays to CSV lets you flip it right back when needed.

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