What does the JSON to CSV converter do?
Paste a JSON array of objects and get a clean CSV file you can open in Excel, Google Sheets, or import into a database. It reads the keys as column headers, keeps every row’s values in the right column even when objects have different fields, and safely quotes any value that contains commas, quotes, or line breaks. Nested objects and arrays are kept as JSON text in the cell.
Everything runs in your browser — your data is never uploaded or stored. Need the other direction? Use our CSV to JSON converter.
Frequently Asked Questions
What JSON format does it expect?
An array of objects, like [{"a":1,"b":2},{"a":3,"b":4}]. Each object becomes a row and each key becomes a column. A single object is also accepted and converted to a one-row CSV.
What happens if objects have different keys?
The converter builds the header from every key it sees across all objects, so nothing is lost. Rows that don’t have a particular field simply get an empty cell for that column.
Can I open the result in Excel?
Yes — click “Download .csv” and open it in Excel or Google Sheets. If your data uses commas inside values, choose the semicolon delimiter, which some regional Excel settings prefer.
Is my data private?
Completely. The conversion runs entirely in your browser with JavaScript — nothing leaves your device or is stored anywhere.
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