JSON to CSV Converter

Convert JSON to CSV

The JSON to CSV converter turns a JSON array of objects into a clean CSV file with a header row and proper escaping. Paste your JSON and copy or download the CSV — ready to open in Excel, Google Sheets, or import into a database. It runs entirely in your browser, keeping your data private.

How it works

The converter scans every object in your array to build a complete set of column headers, then writes one CSV row per object. Values that contain commas, quotes, or line breaks are automatically wrapped in quotes and escaped, so your CSV stays valid and opens correctly in spreadsheet software.

How to use it

1. Paste a JSON array of objects.
2. The CSV is generated instantly with headers.
3. Copy it or download it as a .csv file.

Why convert JSON to CSV?

Use case
Opening API data in Excel or Sheets
Importing records into a database
Sharing data with non-technical colleagues
Analyzing JSON output in a spreadsheet

Handling mixed and nested data

If your objects don't all share the same keys, the converter collects every key across the array and leaves cells blank where an object lacks one — so the CSV stays rectangular. Nested objects and arrays are serialized as JSON text within their cell, which keeps the data intact even when the structure isn't perfectly flat.

Tips

• Make sure your JSON is an array of objects for best results.
• Flatten deeply nested data first if you want every field in its own column.
• Open the downloaded CSV in a spreadsheet to verify the columns.

Private and free

Conversion runs entirely in your browser — nothing is uploaded. The tool is completely free with no sign-up.