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Convert JSON to CSV - JSON to CSV Converter

Convert JSON files to CSV format in your browser. Flatten nested objects. Excel-compatible output. processed locally 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 your JSON file (array of objects)
  2. 2Nested objects are automatically flattened
  3. 3Download clean CSV file

Why Use This Tool?

  • ✓Flatten Nested Data - Handles complex JSON structures
  • ✓Excel Compatible - Open directly in Excel or Google Sheets
  • ✓Automatic Headers - Column names from JSON keys
  • ✓Handle Arrays - Processes JSON arrays properly
  • ✓No Upload Required - Client-side processing

Frequently Asked Questions

Does it handle nested JSON?

Yes. Nested objects are flattened with dot notation (e.g., user.name, user.email). Arrays are converted to comma-separated values.

What if my JSON is not an array?

The JSON should be an array of objects. If you have a single object, wrap it in brackets: [{...}]

Are special characters escaped?

Yes, CSV special characters (commas, quotes, newlines) are properly escaped for Excel compatibility.