JSON to CSV Converter
Convert a JSON array of objects into CSV format. Object keys become column headers.
Convert a JSON array of objects into CSV that opens in any spreadsheet. Object keys become the column headers and each object becomes a row — all processed locally in your browser.
Frequently asked questions
What JSON shape does it expect?
An array of objects, where each object’s keys become columns. Nested values are flattened or stringified so they fit a single cell.
Will it open in Excel or Google Sheets?
Yes — the output is standard CSV that imports directly into Excel, Google Sheets, Numbers, and similar tools.
How are commas in values handled?
Values containing commas, quotes, or line breaks are automatically quoted so the CSV stays valid.
Is it private?
Yes — conversion happens in your browser with no uploads.