JSON to CSV

JSON to CSV is a browser-based converter that transforms JSON arrays into clean, comma-separated value files ready for use in spreadsheets, databases, and data pipelines. It automatically extracts keys from your JSON objects to build the header row, then maps each object's values into the corresponding columns — turning nested API responses or data exports into a flat, portable format in seconds.

For developers, this tool eliminates the need to write throwaway scripts every time you need to hand off data to a non-technical stakeholder or import records into a tool that doesn't speak JSON. Whether you're exporting query results, preparing a dataset for analysis in Excel or Google Sheets, or debugging a data feed, having a reliable JSON-to-CSV converter at hand saves real time.

To use the tool, paste a valid JSON array of objects into the input field. Each object in the array should share a consistent structure — the keys of the first object (or the union of all keys) will become the CSV column headers. Click convert and the output area will display the formatted CSV, which you can copy to clipboard or download as a .csv file.

The input must be a JSON array at the top level — a single object or a deeply nested structure won't produce meaningful tabular output. If some objects in your array are missing certain keys, those cells will be left empty in the output rather than causing an error, so partial data is handled gracefully. Nested objects or arrays within a field will be serialized as a JSON string within the CSV cell rather than flattened automatically, so it's worth flattening complex structures before conversion if you need every value in its own column.

For best results, ensure your JSON is well-formed before pasting. If you're unsure, run it through a JSON formatter or validator first. Special characters like commas, quotes, and newlines inside values are automatically escaped per the CSV specification, so the output stays compatible with standard CSV parsers.