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Convert JSON Array to CSV - Developer Tool

Convert a JSON array of flat objects to CSV format. Export compatible API responses to a spreadsheet locally and privately in your browser.

Quick start

Built for turn complex json data arrays into readable csv spreadsheets.

Everything runs in your browser, so you can test the workflow with sample data when available before using production files.

Output: A new file or report produced locally in your browser.

  1. 1Choose a supported file or use sample data when available.
  2. 2Set the options shown for this workflow.
  3. 3Process the file locally, inspect the result, and download a new copy.
Preparing your private workspace…

How to JSON to CSV

  1. 1Upload a JSON array of flat objects
  2. 2Tool converts object properties into CSV columns
  3. 3Download the CSV and review nested values

Why Use This Tool?

  • ✓Array Support - Converts arrays of flat objects
  • ✓Header Creation - Uses object keys as columns
  • ✓Clear Limits - Up to 100MB per input file
  • ✓Private - Code stays local
  • ✓Free - No API calls

Frequently Asked Questions

Does it flatten nested objects?

No. Flatten nested objects before conversion if you need separate CSV columns.

What JSON works best?

A top-level array containing objects with consistent primitive-valued keys works best.