Is the JSON to CSV tool free to use?

Yes, 100% free with no hidden limits.

Are my data files safe?

Yes. We understand JSON data can be sensitive. The conversion happens strictly in your browser and is never transmitted anywhere.

How does it handle nested objects and arrays?

Nested objects are flattened into dot-notation columns (e.g., user.name), and arrays are typically joined into a single string so they fit cleanly in a spreadsheet.

What if my JSON is invalid?

The tool will warn you if your JSON contains syntax errors, preventing broken CSV outputs.

JSON to CSV Converter

Convert JSON data into CSV spreadsheet format instantly and securely.

Input JSON File

Click to upload or drag and drop

application/json, .json (MAX. 50MB per file)

Convert to CSV

Your JSON file will be flattened and formatted as a CSV securely in your browser.

About This Tool

Quickly transform complex JSON data into a clean, comma-separated values (`.csv`) file. Nested objects are flattened using dot-notation, making them perfectly suited for spreadsheet applications like Excel or Google Sheets. Your sensitive data never leaves your device.

Frequently Asked Questions

How to use JSON to CSV

1
Select your file
Open JSON to CSV and add your file — drag and drop it or click to browse. Your file is processed locally in your browser and is never uploaded to any server.
2
Process
Convert JSON data into CSV spreadsheet format instantly and securely.
3
Download the result
Preview the output and download it instantly — 100% free, no watermark and no sign-up required.

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