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JSON to CSV for Developer Workflows

Quickly convert test fixtures, mock data, and config JSON to CSV or back β€” part of your data pipeline.

No login required
JSON input (array of objects)
CSV output
name,age,city Alice,30,New York Bob,25,London Carol,35,Tokyo

Development tips

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Convert seed data JSON fixtures to CSV for database seeding scripts, or generate CSV test data and convert to JSON for your API mock server.

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The "← Use as input" button lets you round-trip: JSONβ†’CSVβ†’JSON. Useful for verifying your data survives serialisation without loss.

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For CI/CD data validation: generate expected CSV from known-good JSON, then compare the output of your pipeline's CSV export against it.

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Drag and drop the downloaded CSV directly into VS Code, which will preview it in a grid view β€” handy for quick data inspection.

How It Works

1
Enter
Enter your data into the tool above. Everything stays local to your browser.
2
Process
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Download
Get your result instantly. Nothing is stored after you leave the page β€” complete privacy.

Why use ours?

βœ“Completely free β€” no hidden costs, ever
βœ“No account, email, or login required
βœ“Files never leave your device
βœ“No file size limits whatsoever
βœ“No watermarks on any output

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Frequently Asked Questions