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What is JSON to CSV Conversion?

JSON to CSV conversion transforms structured JSON data into tabular comma-separated values format. This is useful when you need to open API data in spreadsheet applications like Excel or Google Sheets, import data into SQL databases using CSV import, share data with non-developers who prefer spreadsheets, or process data with tools that expect CSV format. The converter flattens JSON objects into rows, using the keys as column headers. For arrays of objects (the most common API response format), each object becomes one row.

How to Use the JSON to CSV Converter

1. Paste your JSON data (an array of objects is ideal) into the input box.

2. The CSV output appears automatically.

3. Toggle 'Pretty print' if you want quoted values consistently applied.

4. Copy the CSV output and paste it into Excel, Google Sheets, or a text file.

5. Save as .csv to open directly in spreadsheet applications.

This JSON to CSV converter runs entirely in your browser — no data is sent to any server. Handles arrays of objects, flat objects, and nested structures. Best suited for flat arrays of uniform objects. Useful for exporting API data to spreadsheets, database imports, and data reporting.

Frequently Asked Questions

What JSON structure works best for CSV conversion? An array of objects with consistent keys works best: [{"name":"Alice","age":30},{"name":"Bob","age":25}]. Each object becomes a row and each key becomes a column header.

What happens with nested objects in JSON? Nested objects are flattened using dot notation or converted to a JSON string in a single column. Complex nested structures may require manual post-processing to get the desired CSV layout.

How do I open the CSV file in Excel? Copy the CSV output, paste it into a text file, and save it with a .csv extension. Then open it in Excel. Alternatively, use Excel's Data > From Text/CSV import feature and specify the comma delimiter.

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