JSON to CSV Converter
Convert a JSON array of objects into CSV. Columns are detected automatically from all keys across records.
How it works
The converter accepts a JSON array of objects (or a single object, which is wrapped into a one-row table). It collects the union of all keys as columns in first-seen order. Nested objects and arrays are serialized as JSON strings so no data is lost. Values containing the delimiter, quotes or newlines are escaped according to RFC 4180, so the output opens cleanly in Excel and Google Sheets.
FAQ
Can I convert CSV back to JSON?
Not yet — a CSV to JSON direction is on the roadmap.
Are my records uploaded?
No. Conversion runs entirely in your browser; nothing is sent to any server.
JSON to CSV Converter — FAQ
Is JSON to CSV Converter free to use?
Yes. It is completely free, with no signup, no installation and no usage limits.
Is my data uploaded to a server?
No. The tool runs entirely in your browser — the data you paste or upload never leaves your device.
Does it work on mobile devices?
Yes. It works in any modern desktop or mobile browser, with nothing to install.