JSON to CSV Converter

Convert JSON to CSV format online for free. Transform JSON arrays into CSV spreadsheet format instantly. No signup required, 100% client-side processing for privacy.

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Our free online JSON to CSV Converter is a powerful tool designed for developers, data analysts, and anyone working with data transformation. It helps you convert JSON arrays into CSV format quickly and easily. The tool automatically extracts headers from JSON keys and handles various data types including nested objects and arrays. Whether you're exporting API data to spreadsheets, preparing data for Excel, or converting database exports, our tool streamlines your workflow. It's completely free, requires no signup, and processes everything client-side for maximum privacy.
  1. Paste your JSON array into the left input area. The JSON should be an array of objects.
  2. Click the convert button (arrow) in the middle to transform JSON to CSV.
  3. The CSV output will appear in the right panel with headers extracted from JSON keys.
  4. Use the 'Copy' button to copy the CSV to clipboard, or 'Download' to save as a .csv file.
  5. Clear the input to start a new conversion.

What JSON format does this converter accept?

This converter accepts JSON arrays containing objects. Each object in the array represents a row in the CSV output, and the object keys become the CSV column headers. For example: [{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]

How does the converter handle nested objects or arrays?

Nested objects and arrays are automatically converted to JSON strings in the CSV output. This ensures all data is preserved while maintaining CSV compatibility. The nested data is properly escaped with quotes.

Can I use this tool to export data to Excel?

Yes! The CSV format is fully compatible with Microsoft Excel, Google Sheets, and other spreadsheet applications. Simply download the CSV file and open it in your preferred spreadsheet software.

Is my data safe when using this converter?

Absolutely. All processing happens entirely in your browser using JavaScript. No data is ever sent to our servers. Your JSON data stays on your device, ensuring complete privacy and security.

What happens if my JSON objects have different keys?

The converter automatically collects all unique keys from all objects in the array to create the CSV headers. If an object is missing a key, that cell will be empty in the CSV output.

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CSV

CSV (Comma-Separated Values) is a plain text file format that stores tabular data using commas to separate values and newlines to separate records. It is one of the most common formats for data exchange between applications, especially spreadsheets and databases.

JSON

JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format that is easy for humans to read and write, and easy for machines to parse and generate. It is based on a subset of JavaScript syntax but is language-independent.

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