Yes, completely free with no signup required.

Does my data leave my device?

No. All conversion runs locally in your browser — nothing is sent to a server.

Does it work on mobile?

Yes. The tool is mobile-first and works on any modern browser.

An array of objects where each object represents one row. Keys become CSV headers. Example: [{"name":"Alice","age":30}].

Convert a JSON array to CSV or a CSV file to a JSON array — bidirectional, zero-install, 100% client-side. Paste your data and convert instantly.

100% client-side · no upload

Input

Output

Choose the conversion direction: JSON → CSV or CSV → JSON.
Paste your data into the input box — a JSON array for JSON → CSV, or a CSV with header row for CSV → JSON.
Click the direction button and copy or download the output.

Is this tool free?: Yes, completely free with no signup required.
Does my data leave my device?: No. All conversion runs locally in your browser — nothing is sent to a server.
Does it work on mobile?: Yes. The tool is mobile-first and works on any modern browser.
What JSON format is expected?: An array of objects where each object represents one row. Keys become CSV headers. Example: [{"name":"Alice","age":30}].

Last updated: 2026-05-20 By jarvisbox