Utilzivo

JSON to CSV Converter

Turn JSON data into a CSV spreadsheet in seconds. Paste a JSON array of objects — for example an API response — and this tool converts it into clean comma-separated values you can open in Excel, Google Sheets, or any spreadsheet app. Nested objects are flattened automatically, and fields containing commas, quotes, or line breaks are escaped correctly. Everything runs in your browser, so your data never leaves your device.

How to Use the JSON to CSV Converter

  1. Paste your JSON into the box. It should be an array of objects, like [{"name":"Ali"},{"name":"Sara"}]. A single object also works.
  2. Click Convert to CSV. If the JSON is invalid, you will see a friendly message explaining the problem.
  3. Check the preview table — it shows the first five rows so you can confirm the columns look right.
  4. Click Download CSV to save the full file, then open it in Excel or Google Sheets.

Practical example

Suppose a REST API returns a list of orders as JSON and your accountant needs it in a spreadsheet. Instead of retyping everything, paste the API response here, convert it, and download the CSV. Column headers are taken from the object keys automatically, so {"order_id": 101, "total": 49.99} becomes a neat two-column table with zero manual work.

Key features and benefits

  • Correct CSV escaping: values with commas, quotes, or line breaks are wrapped in quotes and escaped per the CSV standard, so spreadsheets open them properly.
  • Automatic column detection: every unique key across all objects becomes a column; missing values are left blank.
  • Nested data flattened: objects or arrays inside a field are converted to compact JSON text instead of breaking the table.
  • Instant preview: see the first five rows before downloading, so mistakes are caught early.
  • Private by design: conversion happens locally in your browser — nothing is uploaded anywhere.

Limitations

Flattening is one level deep: deeply nested structures are stored as JSON text in a single cell rather than expanded into many columns. All rows should ideally share the same shape; wildly different objects produce a wide table with many blanks. Very large JSON files (tens of megabytes) may be slow because everything is processed in your browser’s memory. The tool does not validate your data’s meaning — it converts structure only.