JSON to CSV Converter
ConvertersConvert a JSON array of objects to CSV instantly in your browser. Shows a table preview of the output. Validates flat structure. Swap to CSV→JSON in one click.
JSON → CSV
JSONjson
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CSVcsv
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Input: 198 chars
About JSON to CSV Converter
The JSON to CSV converter transforms a JSON array of flat objects into a comma-separated values file using csv-stringify. Column headers are extracted from the first object's keys. Both editors are live — edit JSON and CSV updates, or edit CSV and JSON regenerates. The CSV output panel also displays a sortable table preview so you can verify column alignment before downloading or copying.
Features
- ✓Bidirectional — edit either panel and the other updates in real time
- ✓Powered by csv-parse and csv-stringify for standards-compliant CSV output
- ✓Column headers generated from JSON object keys
- ✓CSV output has interactive sortable table view
- ✓Validates that input is a flat JSON array (not nested)
- ✓Swap direction to CSV→JSON with a single click
- ✓Download converted CSV as a .csv file
- ✓Copy output to clipboard in one click
- ✓Web Worker processing — never blocks the UI
- ✓100% client-side — data never leaves your browser
Common Use Cases
- Exporting JSON API responses as CSV for import into Excel or Google Sheets
- Converting database query results (JSON) to CSV for data analysis
- Generating CSV test fixtures from JSON sample data
- Exporting JSON report data to CSV for business intelligence tools
- Transforming JSON arrays from REST APIs into CSV for ETL pipelines
Frequently Asked Questions
QDoes it work with nested JSON?
CSV requires a flat tabular structure. Nested JSON objects are not supported — flatten your JSON first (for example using the JSON Formatter's query tools) before converting.
QAre all JSON types preserved in CSV?
JSON strings, numbers, and booleans are written as string values in CSV cells. JSON null becomes an empty cell.
QIs my data sent to a server?
No. All conversion runs in a Web Worker inside your browser.