The JSON to CSV converter turns an array of JSON objects into spreadsheet-ready rows and columns. It collects the keys into a header row and each object into a data row, so you can open the result in Excel, Google Sheets or Numbers, or feed it into a data pipeline.
Conversion runs client-side in your browser with no upload, so exporting a report full of customer records or a production dataset stays private. It is free and has no row limit beyond your device's memory.
Reach for it when you need to hand a dataset to a non-developer, load JSON into a spreadsheet for analysis, or bulk-import records into a tool that only speaks CSV.
Nested objects don't fit into flat columns, so with flattening on, a key like address.city becomes a single column using dot-path notation. This unrolls deep structures into a wide table where every leaf value gets its own clearly named column.
Pick comma, semicolon or tab. Comma is the CSV default, but semicolon is safer for locales where the comma is a decimal separator, and tab (TSV) avoids quoting issues when your data itself contains commas. The header and rows all use the delimiter you choose.
Values that contain the delimiter, quotes or newlines are wrapped in double quotes and internal quotes are doubled, following the standard CSV convention so the output parses cleanly in any spreadsheet.
When objects don't all share the same keys, the converter builds the header from the union of keys and leaves cells empty where an object lacks a field, so every row still lines up under the correct columns.
With flattening enabled, nested keys are expanded into dot-path columns like user.address.city, giving each leaf value its own column. Turn flattening off to keep nested objects as JSON text inside a single cell.
Comma is standard. Use semicolon if your spreadsheet locale treats comma as a decimal point, or tab if your values frequently contain commas and you want to avoid heavy quoting.
The converter uses the union of all keys as the header and leaves cells blank where a given object is missing that field, so columns stay aligned.
No. The conversion runs entirely in your browser, so exporting sensitive records to CSV keeps them on your machine.
CSV is a table, so the input should be an array of objects (or a single object, treated as one row). Deeply irregular or non-tabular JSON may not map cleanly to rows and columns.