Zase

JSON to CSV Converter

Turn a JSON array into a clean CSV file you can open in Excel or Google Sheets.

Get it in Chrome

Loading JSON to CSV Converter

Also available in the Chrome extension Every Zase tool also lives in the free Developer Toolkit by Zase extension: fully offline, in a window or the side panel, one keyboard shortcut away.

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About this JSON to CSV Converter

APIs speak JSON, but spreadsheets, clients and reports speak CSV. This page bridges the two: paste a JSON array of objects and the converter builds a CSV with a header row from the object keys and one row per object. It is the fastest way to get API data into Excel, Sheets or any tool that imports CSV, without writing a throwaway script.

How to use the JSON to CSV Converter

  1. Paste a JSON array of objects into the input panel (a sample array is already loaded).
  2. Click To CSV and check the result: keys become the header row, each object becomes a row.
  3. Copy the CSV, or download it and open it in your spreadsheet.

Good to know

  • Values containing commas, quotes or newlines are quoted properly, so the CSV opens cleanly in Excel and Sheets.
  • Nested objects are flattened into readable cell text instead of breaking the row layout.
  • Conversion runs locally in your browser: private API data is never uploaded.

Frequently asked questions

What JSON shape converts best to CSV?

An array of flat objects with the same keys, like a list of orders or users. The keys become the header row. Single objects convert too, as a one-row file, and nested values are written as compact text inside their cell.

Can I open the result directly in Excel?

Yes. Download the CSV and double click it, or paste the result into a .csv file. Headers, quoting and line breaks follow the CSV standard that Excel and Google Sheets expect.

Is my data uploaded for conversion?

No. The converter runs entirely in your browser tab, so the JSON you paste never leaves your device.