JSON to CSV / CSV to JSON

Select the JSON to CSV mode and paste your JSON array of objects into the input area. The tool instantly maps each object key to a CSV column header and each object to a data row. You can then download the result as a .csv file or copy it to your clipboard for use in Excel or Google Sheets.

Yes. Nested objects are automatically flattened using dot notation so deeply nested data becomes flat CSV columns. This is essential for converting complex API responses or MongoDB exports into spreadsheet-friendly formats for data analysis and reporting.

You can choose between comma, tab, semicolon, or pipe as the delimiter. This is useful for generating TSV files or for compatibility with systems that use non-standard separators.

Yes! All processing happens entirely in your browser. Your data is never sent to any server. No data is collected, stored, or transmitted.

Yes. After conversion, click the Download button to save the output as a .csv or .json file depending on the active mode. You can also copy the result to your clipboard for pasting into spreadsheets, databases, or code editors.