JSON to CSV API — Convert Between JSON and CSV Formats
Convert JSON data to CSV and CSV data to JSON. Bulk data format conversion with header detection. Free API.
What is JSON ↔ CSV Conversion?
JSON to CSV conversion transforms structured JSON data into comma-separated values format, and vice versa. The API detects the conversion direction and handles headers, nested values, and arrays. Essential for data analysis, spreadsheet imports, and data migration.
How to Use It
Call GET /api/v1/json-csv?input=%5B%7B%22a%22:1%7D%5D&action=json2csv. Returns { result: string, rows: number, format: string }.
Try it live
Test this endpoint in the interactive console
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Frequently Asked Questions
Does it handle nested JSON objects?
Nested objects are flattened with dot-notation keys in CSV mode.