CSV ↔ JSON Converter
Free online CSV/JSON converter. Turn a CSV exported from Excel or Sheets into an array of JSON objects, or convert a JSON array back into spreadsheet CSV. Commas, quotes and newlines inside fields are parsed correctly — a common data and API helper that runs locally. DeveloperRuns locally
Use this tool
How to use
- CSV → JSON: the first row must be headers; paste CSV and convert to get an array of objects.
- JSON → CSV: paste an array of objects to get CSV that opens in Excel/Sheets.
- Copy the result and save it as .csv or .json.
Frequently asked questions
What if a field contains a comma?
Standard CSV rules are supported: a field wrapped in double quotes may contain commas, and an inner quote is escaped by doubling it.
Can it convert Excel files directly?
It converts CSV text — export your sheet as .csv (or copy the cells) first, then paste it here.
Is my data safe?
Conversion runs locally in your browser; no table data is uploaded.