JSONDev.in

JSON to CSV Converter

Convert JSON to CSV and CSV to JSON online. Supports nested objects, arrays, and auto type detection. Free online converter.

About this tool

Convert JSON arrays of objects into CSV for Excel, Google Sheets, and data pipelines. Nested values are flattened into cells when needed.

Example use case: Export API JSON results to CSV for sharing with non-technical teammates.

Input (JSON)

Output (CSV)

Frequently Asked Questions

How do I convert JSON to CSV?▾
Paste a JSON array of objects into the input field and click Convert. The tool uses the keys of the first object as CSV headers and converts each object to a CSV row. You can download the result as a .csv file.
What JSON structure works best for CSV conversion?▾
A flat array of objects works best: [{"name":"Alice","age":28},{"name":"Bob","age":34}]. Nested objects are stringified into the CSV cell. If you have nested data, flatten it first using JSON tools.
Can I open the exported CSV in Excel or Google Sheets?▾
Yes. The exported CSV uses standard comma-delimited format compatible with Microsoft Excel, Google Sheets, Apple Numbers, and any other spreadsheet application.