JSON ⇄ CSV Converter
JSON ⇄ CSV Converter: free, fast and private. Works in your browser, nothing is uploaded, no sign-up needed.
How to use
Convert JSON arrays to CSV and CSV back to JSON. Quoted fields, commas, line breaks and escaped quotes are handled correctly, and you can choose a comma, semicolon or tab as the delimiter. Everything stays on your device, which is handy for spreadsheets, exports and API data.
- Paste or type your input.
- Adjust the options.
- Copy the result.
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Frequently asked questions
What JSON shape converts to CSV?
An array of objects works best. Each object becomes a row and the keys become the column headers.
Are leading zeros kept?
Yes. Values such as 007 stay as text, because only plain numbers like 7 or 3.14 are converted.
Is it free?
Yes. All tools are free, with no sign-up and no limits.
Is my code or data uploaded?
No. Everything runs locally in your browser, so your code and data stay private.
Does it work on mobile?
Yes. It works in any modern mobile or desktop browser.