Convert JSON arrays to CSV in your browser. Paste JSON, download CSV — no server, no sign-up. Handles nested objects with dot-notation flattening.
What JSON structures can be converted to CSV?
The converter works best with JSON arrays of objects — the most common API response shape. Nested objects are flattened using dot notation (e.g. address.city). A single top-level object is wrapped in a one-row table.
How are special characters handled in CSV output?
Values containing commas, double quotes, or newlines are automatically wrapped in double quotes and inner quotes are escaped per RFC 4180.
Is my JSON sent to a server?
No. Conversion runs entirely in your browser. Your data never leaves your device.