How to use JSON to CSV
CSV represents a rectangular table, while JSON can hold arbitrary trees. This converter expects an array of objects, builds a union of their keys and safely quotes values for spreadsheet-oriented export.
Nested objects and arrays are serialized as compact JSON within a cell. That preserves the value for inspection but does not flatten it into additional columns.
A reliable workflow
- Paste an array of similarly shaped JSON objects
- Convert and verify headers, row count and quoted values
- Download the CSV and test a representative sample in the destination spreadsheet
Worked example
Convert the included two-person record array
[{"name":"Ada","role":"Engineer","active":true},{"name":"Lin","role":"Designer","active":false}]name, role and active become headers with one row per object. Boolean values are serialized into cells because CSV does not carry a universal type schema
When this tool helps
- Share API records with non-developer teammates
- Prepare a small data extract for spreadsheet analysis
- Turn test fixtures into importable rows
Accuracy and safety notes
- Deeply nested records usually need a deliberate flattening strategy
- Treat cells beginning with spreadsheet formula characters as untrusted when sharing imported data
Frequently asked questions
Does XXF upload or store my data?+
No. The conversion runs locally in your browser. Your input is not sent to XXF, stored on a server or used for training.
What JSON shape works best?+
Use an array of similarly shaped objects. Nested objects are serialized as compact JSON inside their CSV cells.