What is formula protection?

Spreadsheet apps execute cells that begin with =, +, - or @. With protection on, such values get a leading apostrophe so they are shown as text instead of being run.

What if objects have different keys?

Every key found in any record becomes a column; records without that key get an empty cell.

Is my data sent to a server?

No. Everything is processed in your browser, which matters when the input is a production payload, token or query. Nothing is uploaded, logged or stored.

JSON to CSV Converter - Free Online Tool

JavaScript is turned off. InspireTools processes files in your browser, so the tools need JavaScript to run.

Convert a JSON array of objects into CSV, flattening nested fields.