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CSV to JSON Converter Online Free

Convert CSV tables into clean JSON arrays

  • 100% free
  • No sign-up
  • Files stay on your device
  • No watermarks

How to convert CSV to JSON in 3 easy steps

  1. 1

    Paste the CSV

    Copy from Excel, Google Sheets, or any CSV export.

  2. 2

    Set the header option

    Toggle whether the first row contains column names.

  3. 3

    Copy the JSON

    The formatted JSON array is generated instantly.

Why use the csv to json converter tool from Super Utility Hub?

Spreadsheets export CSV; APIs consume JSON. This converter bridges the two: paste CSV data, choose whether the first row is a header, and get a valid JSON array of objects — with proper handling of quoted fields and commas inside quotes.

The output is ready to paste into fetch calls, serverless functions, or JSON editors.

  • Processes everything in your browser — no upload servers involved
  • Free forever with unlimited uses
  • Works on Windows, macOS, Linux, Android and iOS
  • No watermark or branding on your output, ever

Frequently asked questions

Does it handle quoted fields?

Yes — fields wrapped in double quotes, commas inside quotes, and escaped double quotes ("") are all parsed correctly.

What if there is no header row?

Turn off the header option and columns are named column1, column2, and so on.

What about rows with missing cells?

Missing trailing cells become empty strings. Missing middle cells keep their column position as empty strings too.