JSON to CSV Converter
Convert JSON arrays and nested objects to RFC 4180 CSV tables
About JSON to CSV Converter
How JSON to CSV Converter Works
Inspects JSON arrays of objects and recursively flattens nested properties into dot notation column headers. Outputs standard RFC 4180 CSV with escaped quotes and customizable delimiters (comma, semicolon, tab, pipe) strictly in browser memory.
JSON to CSV Converter takes JSON arrays of objects and transforms them into tabular RFC 4180 CSV files. It automatically extracts unique keys for column headers, flattens nested objects using dot notation, escapes commas and quotes, and allows custom delimiter selection (comma, semicolon, tab, pipe).
Frequently asked questions
How are nested objects handled?+
Nested object properties are automatically flattened into dot notation columns (e.g. user.address.city). You can also disable flattening to keep nested structures as serialized JSON strings.
Can I convert arrays with varying keys?+
Yes. The converter scans all objects in the array and collects the complete union of keys as CSV column headers, filling missing fields with empty strings.
Is any data uploaded to a backend?+
No. All conversion algorithms execute 100% client-side in your browser.
Limitations
For optimal performance, input datasets should be structured arrays of objects.