JSON is how data travels between programs; CSV is how people open it in a spreadsheet. Converting from one to the other is a common chore — you export some data as JSON and need it in Excel, Google Sheets or Numbers. The good news is it is a quick, offline job.
What converts cleanly
The neat case is a JSON array of flat objects — a list of records where each one has the same simple fields. That maps directly onto a spreadsheet: each object becomes a row, and each field becomes a column. Most data exports look like this.
How to convert
- Open the JSON to CSV converter and paste your JSON.
- It reads the records and builds a column for every field it finds.
- Copy or download the CSV, then open it in your spreadsheet app.
Watch out for nested data
The one thing to know: CSV is flat, but JSON can nest objects and arrays inside each other. A field that itself contains an object or a list cannot become a single tidy column without a decision about how to flatten it. If your JSON is deeply nested, expect those fields to be simplified or joined into one cell rather than split perfectly — that is a limit of the CSV format, not the tool.
Everything is converted in your browser, so even a sensitive export never leaves your device.