JSON to CSV converter
Paste a JSON array of objects to get CSV with a header row.
JSON to CSV converter
Convert JSON to CSV instantly: paste an array of objects and get comma-separated rows, with the object keys as the header row. Values containing commas, quotes or line breaks are safely quoted. Everything runs in your browser — your data is never uploaded.
How it works
The tool collects every key across all objects so no column is lost, then writes one CSV line per object. Nested objects are written as JSON text inside the cell. It’s the reverse of our CSV to JSON converter.
Frequently asked questions
What if objects have different keys? All keys are merged into the header; missing values are left blank.
Is my JSON uploaded? No — the conversion is 100% local in your browser.