JSON to CSV Converter

Turn flat JSON data into CSV, ready for Excel, Google Sheets or any spreadsheet tool.

Your data is converted locally in your browser and never uploaded.

How to use JSON to CSV Converter

  1. Paste a JSON array of objects, e.g. [{"name":"Ada","age":36}]
  2. The CSV output appears automatically, with the first row as column headers.
  3. Download the result as a .csv file or copy it.

About this tool

APIs return JSON, but spreadsheets speak CSV. This converter takes an array of flat objects and produces a properly escaped CSV file — quoting fields that contain commas, quotes or newlines, exactly as Excel expects.

Nested objects and arrays inside a field are flattened to their JSON text so no data is lost.

Frequently asked questions

What shape must the JSON be in?
An array of objects, like [{"a":1},{"a":2}]. If the input is a single object or an array of primitives, the tool will tell you what it expects.
How are nested values handled?
If a field contains an object or array, it is written as compact JSON inside the cell, so the information is preserved.
Can I open the CSV in Excel?
Yes — download the .csv file and open it directly, or paste the output into a spreadsheet.

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