FormatMillNothing leaves your device

JSON to CSV

Convert JSON to CSV in your browser. Your file is never uploaded.

This free JSON to CSV converter runs in your browser. Drop in a JSON file and download a CSV a moment later, with no upload, no sign-up, and nothing to install. Because the work happens on your own device, your file never leaves it.

What is JSON?

JSON is a structured text format used to move data between programs and APIs. Converting to and from CSV or XLSX bridges code and spreadsheets.

What is CSV?

CSV stores tabular data as comma-separated plain text. Almost every spreadsheet and database reads and writes it, which makes it the common language for moving data.

Questions

Is the JSON to CSV converter free?

Yes, it is free with no sign-up and no watermark. There is no cap on how many files you can convert, and nothing to install.

Do my files get uploaded to a server?

No. The conversion runs entirely in your browser using code that loads onto your device, so the file is read, converted, and downloaded locally. It never reaches us or anyone else.