Skip to main content
Super Utility Hub

JSON to CSV Converter Online Free

Turn API results into spreadsheet-ready CSV

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

How to convert JSON to CSV in 3 easy steps

  1. 1

    Paste the JSON

    An array of objects, e.g. from an API response.

  2. 2

    Check the result

    Headers are inferred from the first object; rows follow.

  3. 3

    Copy or save

    Copy the CSV, or paste it straight into a spreadsheet.

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

APIs return JSON; business users live in spreadsheets. This converter takes a JSON array of objects and produces CSV with matching headers — ready to open in Excel, Google Sheets, or import into a database.

Column order follows the first object's keys, nested objects are serialized as JSON strings, and everything is properly quoted and escaped.

  • 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

What if the JSON is a single object?

It is treated as a one-row table — perfectly valid CSV with headers from its keys.

How are nested objects handled?

Nested objects and arrays become JSON strings in their cell, preserving the data losslessly in a spreadsheet-friendly shape.

Does it validate the JSON first?

Yes — invalid JSON produces a clear error instead of broken output.